Posts

A proposed new route to sharper imaging using quantum interference

https://phys.org/news/2025-05-route-sharper-imaging-quantum.html "improves distinguishing 2 closely spaced faint distant thermal light sources, by estimating small separations (transverse distance) between them... relatively simple quantum set-up extracts spatial information traditionally limited by Rayleigh Criterion resolution limitation rule... measures interference at beam splitter between photon emitted by either one and laboratory prepared reference photon... needs testing outside of ideal lab conditions... microscopy, astronomy, remote sensing."

Photonic chip design offers simpler solution for one-way light flow in optical circuits

https://phys.org/news/2025-05-photonic-chip-simpler-solution-optical.html "parity-time symmetric photonic waveguides mirror-flips light waves to 'reverse time' so system behaves same as before... tiny pieces of metal along the waveguides serve as light traps, enabling reconfigurable transmission for asymmetric transmission simplifying telecommunication... waveguide control eliminates need for complex/ bulky isolator components... Floquet non-Hermitian physics periodical system, mimicing rotated polarizers effect... reduces cross-talk... semiconductors, fiber optics, lasers, sensors"

LMCompress algorithm, based on LLMs, doubles lossless data compression rates

https://techxplore.com/news/2025-05-algorithm-based-llms-lossless-compression.html "if large language models such as underpins ChatGPT understand data well, then receiving device does not need to receive but can guess what we plan to write, allowing significantly better data compression... compresses: texts >2X better  zip giles, compresses images and audios 2X better than classical algorithms like JPEG-2000 for images, and video slightly less than two times better... so overall, when you transmit data, you can go approximately 2X faster"

RP-H200 hydrogen-bonded organic crystal framework with largest pores in its class; exceptionally stable methane, hydrogen storage

https://phys.org/news/2025-05-large-pore-molecular-crystals-energy.html "organic molecules linked through noncovalent interactions... crystals with large porosity lack stability, overcome with noncoplanar assembly using imidazole-annulated triptycene hexaacids... molecules self-assemble into double-walled, honeycomb-like structure, creating 3.6-nm pores lined with 2,313 m²/g aromatic surface area... withstands temperatures up to 350°C, harsh solvents (ethanol)... stores 0.31 grams methane/ gram... also stores 6.7% of its weight in hydrogen... withstands repeated adsorption cycles"

Supramolecular porphyrin-based photoresponsive cages enable tunable charge transport behaviors in solid-state optoelectronics

https://phys.org/news/2025-05-photoresponsive-cages-tunable-supramolecular-electronics.html "merges supramolecular chemistry/ molecular electronics... supramolecular assemblies fine-tune electron flow via weak, reversible interactions, spatially precise/ non-invasive external lightwave stimuli... planar aromatic macrocycle porphyrin derivatives, having photostability/ strong visible light absorption, coordinated with a bidentate diplatinum(II) motif, constructing cage-like supramolecular structures (C-TPyP) featuring rigid pillars and a separation distance of ~18.3 Å between the porphyrin faces... molecular switches"

Achromatic metasurface waveguide: Pioneering a new era in AR displays

https://www.eurekalert.org/news-releases/1083668 "balance between clarity and compactness... slim diffractive waveguides, adopted by HoloLens/ Meta Orion, have chromatic dispersion, leading to image distortion... overcome combining inverse-designed metasurface (precisely control phase, amplitude, polarization) couplers with single-layer high-refractive-index waveguide... optimized metasurface coupler geometry consistently couples RGB efficiency eliminating chromatic aberration... reduced manufacturing complexity due to its single-layer structure"

Multimodal transistor halves production costs, reduces harmful waste, and delivers brighter/ more energy-efficient screens of compact devices

https://www.eurekalert.org/news-releases/1083484 "less fabrication time/ water... instead of eliminating energy barriers forming restricting current flow where metals meet semiconductors, those barriers are made central to transistor's operation... fewer components/ processing steps, compact, high-performance, energy efficient... already in AMOLED/ microLED displays... compatible with current production lines... transistor based on neural behavior... displays, microfluidics, imaging arrays, hardware AI, smartphones, smartwatches, certain medical devices"

Perovskite crystal engineering enables LED breakthrough: 24.2% peak external quantum efficiency, 24,600 cd m-2 maximum luminance

https://www.eurekalert.org/news-releases/1083456 "tunable emission across visible spectrum, low-temperature, solution-based processability, narrowband vivid color output, overcoming trade-off between efficiency/ brightness... 3D mixed-halide perovskites like CsPbI3-xBrx external quantum efficiency plummets under high current densities due to hole leakage into the electron transport layer, overcome using p-Toluenesulfonyl-L-arginine strongly bonding to perovskite lattice via multiple functional groups for seamless carrier transfer between heterostructure's phases"

UK lab promises air-conditioning revolution without polluting gases; could also be used to produce heat

https://techxplore.com/news/2025-05-uk-lab-air-con-revolution.html "soft, waxy solid plastic crystal refrigerant's temperature varies >90°F under pressure, unleakable... more energy efficient... substance used by chemical industry, relatively easy to obtain... proprietary crystal's molecules spin on own axis, when squeezed, that movement stops and the energy is dissipated in the form of heat. When released, the substance cools using barocaloric effect... potentially as efficient as gas, if not more so... prototype large suitcase size...   up to 75% reduced emissions... commercial within 3 years"

Carbon nanobelts, cross-sectional slices of carbon nanotubes, when capped with sulfur-containing functional groups, promise novel applications

https://phys.org/news/2025-05-sulfur-capped-carbon-nanobelts-applications.html "one functional group, thiophene ring-shaped compound of 1 sulfur atom/ 4 carbon atoms, is function-rich with interesting semiconducting/ fluorescence properties... fast/ easy fabrication, single-shot reaction: all nanobelts aligned with sulfur sides up on copper surface, but with sulfur sides down on gold surface... same synthesis strategy could also be used to create other varieties of carbon nanobelts... numerous requests for collaboration... building blocks for carbon nanotubes, polar materials, electronic/ optoelectronic devices"

Simplier, reliable, secure data transmission of high-dimensional quantum information encoded in precise timing of single photons

https://www.eurekalert.org/news-releases/1083097 "resolving arrival times overcome using Hong-Ou-Mandel interference quantum effect... time-bin quantum encoding, storing information in time at which photons arrive... combined with quantum walk technique describing single photon movement over different paths in time, enabling use with high-dimensional qudits greatly increasing amount of information processed/ transmitted, and making communications more secure... >99% fidelity... generates quantum entanglement between different properties of single photons"

Plastic warm metalworking makes traditionally brittle inorganic semiconductors suitable for flexible or wearable electronics

https://www.eurekalert.org/news-releases/1083285 "no: costly complex deposition/ sputtering, rigid substrates... plasticity below ~200 °C enables easy fabrication using rolling (3000% extensibility), compression, extrusion... free-standing, substrate-free, µm to mm tunable thicknesses, retain high crystallinity/ physical properties comparable to their bulk counterparts... carrier mobilities as high as ~1000–5000 cm² V⁻¹ s⁻¹, 4X higher than that of crystalline silicon and orders of magnitude greater than most 2D and organic materials... flexible, wearable electronics" Related: Countersnapping structures shrink when pulled https://techxplore.com/news/2025-05-countersnapping.html#google_vignette

Combining 2 tiny vibrations can amplify up to 100 million times, transmitting clear signals over long distances using nonlinear math

https://techxplore.com/news/2025-05-tiny-vibrations-massive-impact-transmitting.html#google_vignette "coupling with delay structurally amplifies, rather than using power... delay because rhythm of one influences other, but not right away, enabling resonance effects/ constructive interference... no high energy input or large numbers... need just right interaction/ spacing between them... sending/ receiving signals over distances in noisy or energy-limited conditions... information processing, communications, low-power remote: implantable medical devices/ space probes"

Carbon nanotubes emit light more energetic than that absorbed, due to phonon interactions and dark exciton formation

https://scitechdaily.com/new-light-trick-in-carbon-nanotubes-could-boost-solar-power/ "up-conversion photoluminescence... exciton receives an energy boost from the material by interacting with vibrations in it known as phonons... occurs with high efficiency even in defect-free single-walled carbon nanotubes, higher temperature produced stronger effect... optoelectronic/ photonic devices, solar power, laser-cooling, biological imaging... future: cooling nanotube using laser illumination to remove thermal energy"

NREL: Energy-efficient synapse-like phototransistors for visual information computer processing, self-driving vehicle sensors

https://www.nrel.gov/manufacturing/news/press/2021/scientists-at-nrel-report-new-synapse-like-phototransistor "combined metal-halide perovskite nanocrystals with single-walled carbon nanotube network, shined laser at it, electrical current continued flowing >1 hour at room temperature, mimicing brain synapses storing memories... only low voltages/ light intensities needed... works using any of 3 different types of perovskites: formamidinium lead bromide, cesium lead iodide, and cesium lead bromide... AI, machine learning" Related: Australian engineers develop brain-like device for next-gen visual processing https://www.aumanufacturing.com.au/australian-engineers-develop-brain-like-device-for-next-gen-visual-processing

Creation of 3D superconducting nanostructures via local control of superconducting state using a pseudo nano 3D printer

https://www.eurekalert.org/news-releases/1083303 "switches on (superconducting)/ off (normal) in different parts of the 3D nanostructure by rotating  nanostructure in magnetic field, superconducting/ normal coexistence can lead to quantum mechanical effects, such as weak links used for ultra-sensitive sensing... move from 2 to 3D might breaking symmetries, introduce curvature, create interconnected channels... creates reconfigurable superconducting device propagating superconducting state defects, building adaptive/ multi-purpose superconducting components"

Stable fabrication of 1D carbon atom chain carbyne, which unlike graphene has a semiconductor gap, useful for building transistors

https://www.eurekalert.org/news-releases/1083267 "incredibly strong for being so thin... easily bends/ snaps on itself making fabrication nearly impossible, overcome using scalable, fast/ efficient method: cheap solvent ammonium cholate gentle starting material used for growing carbyne at much lower temperature, then encased in single-walled carbon nanotube protective shell keeping it stable... low cost/ high yield... doesn't bond to nanotube walls... excitable quantum materials, which could lead to entirely new technologies... computing, nanotechnology"

Fast charging, high power density, long lifetime of supercapacitors, combined with the relatively high energy density of batteries

https://techxplore.com/news/2025-05-scientists-gen-energy-storage-technologies.html "chemically bonded highly conductive single-walled carbon nanotubes with processable/ inexpensive polyaniline... stable even after >100K cycles, durable even in high-voltage environments, fast charging, improved range/ performance, can be rolled/ folded... mass produced fiber bundles, specific capacitance maintained without decreasing (PANI acts as nanocell inside)... forms liquid crystal phase based on carbon nanotubes, spinning it into coagulation bath, solidifying, stretching... EV's, drones, robots, wearables"

Microcombs could be key in meeting bandwidth demands and reducing energy consumption for artificial intelligence and data centers

https://techxplore.com/news/2025-05-microcombs-key-bandwidth-demands-artificial.html "optical ruler/ frequency microcombs greatly increases bandwidth, generating 100's wavelengths coherently, reliably, stably on single chip, integrated sources for >1 Pbps data transmission... space division multiplexing microcombs communicate at unprecedentedly ultra-high bandwidths and with greatly reduced energy consumption in ultra-small integrated footprint... spectroscopy, metrology, data transmission"

One glass, full color: Sub-millimeter waveguide shrinks augmented-reality glasses, uses scalable, large-area fabrication

https://phys.org/news/2025-05-glass-full-millimeter-waveguide-augmented.html "not bulky/ heavy... lens itself guides virtual images directly to eye... separate waveguide layers for red, green, blue not required, overcome using achromatic metagrating handling all colors in single glass layer...  nanoscale silicon-nitride pillar array finely tuned by stochastic topology-optimization algorithm steering light with maximum efficiency... vivid full-color images using a 500-µm-thick single-layer waveguide... 9-mm eyebox... color, uniformity/ brightness outperforms... education, health care, gaming/ entertainment"

Flexible, strong, freeze-/ dehydration- resistant Sonogel uses ultrasound for faster, greener, safer way to make hydrogels

https://phys.org/news/2025-05-ultrasound-safer-greener-hydrogels.html "no toxic chemical initiators... sound applied to liquid precursor creates microscopic bubbles collapsing with immense energy, forming gel within minutes... 5 minutes ultrasound, not hours /overnight under UV...  ultrasound penetrates deep into tissues enabling in-body hydrogel formation without surgery... injecting liquid precursor then using ultrasound solidifying precisely where needed... tissue engineering, bioadhesives, 3D bioprinting" Related: Ultrasound-guided 3D bioprinting enables deep-tissue implant fabrication in vivo https://www.eurekalert.org/news-releases/1082646

First energy teleportation in multi-qubit system, uses W or GHZ state entanglement, paves way for practical energy-aware networks

https://quantumzeitgeist.com/quantum-energy-teleportation-achieved-in-multi-qubit-systems-using-w-state-entanglement/ "noiseless simulators/ superconducting hardware successfully executed 3-, 4-, 5-qubit circuits, enabling single sender deterministically transfer energy E0 to multiple remote receivers... ground-state entanglement (particles remain entangled even at their lowest energy state) facilitates efficient energy transfer within many-body systems... Hotta model, Bell states... energy transfer leveraging quantum entanglement, without prioritizing information over physical resources... future: optimizing protocols/ entanglement distribution" Related: A new study provides insights into cleaning up noise in quantum entanglement https://www.eurekalert.org/news-releases/1083898

Core horizontal nozzle-pressurized spinning turns cow manure, cheaply and cleanly, into cellulose, one of the world’s most used materials

https://www.eurekalert.org/news-releases/1082848 "no electrospinning with its high voltages/ toxic chemicals... uses pressure/ rotation simultaneously to spin fibers, beads, ribbons, meshes, films (each of which have different manufacturing applications) from soft matter liquid jet, using horizontal rather than vertical vessel containing surface nozzles/ injecting jet into still or flowing water, forming cellulose fibers... existing pressurized spinning machines adapted... work with dairy farmers to scale... cling film, surgical masks, paper products, textiles, foods, pharmaceuticals." Related: New enzyme capable of cleaving cellulose should revolutionize biofuel production https://www.eurekalert.org/news-releases/1083320

Vapor-deposited perovskite semiconductors power next-generation displays and electronic devices

https://techxplore.com/news/2025-05-vapor-deposited-perovskite-semiconductors-power.html " tin-based perovskite p-type (high-speed computing with low power consumption) semiconductor with unique crystal structure enabling superior performance.typical of n-type... This material has emerged as a promising candidate for high-performance p-type transistors... solution process presents scalability/ consistent quality challenges, overcome using thermal evaporation producing high-quality cesium-tin-iodide layers, adding small amount lead chloride... >30 cm2/V·s hole mobility, 108 on/ off current ratio"

Large-aperture micro-electro-mechanical-system (MEMS) modulator paves way for high-speed, energy-efficient optical communications

https://www.eurekalert.org/news-releases/1082807 "optically efficient/ scalable/ tunable sinusoidal grating modulator... integrating with broadside-constrained continuous ribbons achieves 30 × 30 mm aperture, supports high-speed (response time approaches 1.1 µs) modulation up to 250 kHz, 90% optical efficiency, >95%° dynamic modulation contrast, energy-efficient... critically damped response with no residual oscillations... micromirror elimination reduces complexity/ cost... polarization independence adds versatility... aerospace, telecommunications, remote sensors, LiDAR"

Deep-trench 3D printing fabricates next-gen RF devices comprised of 1:4 aspect ratio microstructures with sub-10 micron resolution

https://www.eurekalert.org/news-releases/1082791 "combining 2-photon polymerization, electroplating, dry etching... ultra-compact RF resonators with tunable frequencies between 4–6 GHz... trenches in photoresist layer filled with thick (up to 8 µm) copper through electroplating, dry etching removes seed layers, yielding freestanding metal structures with flat, vertical sidewalls... increasing metal thickness improves Q-factor 6 to 7X, resonance frequencies shifted up to 200 MHz, allowing precise tailoring for specific RF applications... sensing, MEMS, RF metamaterials"

Reprogramming stiffness/ energy absorption of magnetic metamaterials using flexible magnets distributed throughout their structures

https://techxplore.com/news/2025-05-reprogrammable-magnetic-metamaterials-biomedicine-soft.html "reprogram metamaterial mechanical/ structural behavior without modifying composition... integrated into rotating rhomboid matrix allowing stiffness/ energy absorption modification by changing magnets' distribution or applying external magnetic field... combines identification/ characterization of different materials with analysis of their behavior as function of magnetic orientations... biomedicine, soft robotics, impact protection, aerospace engineering"

Hours-long continuous lasing achieved laser-cooling of strontium atoms to near absolute zero, improving study/ control of quantum phenomena

https://phys.org/news/2025-05-hours-lasing-laser-cooled-strontium.html "laser-continuously-cooled (10 millionths degree above absolute zero) strontium-88 atoms continuously loaded into/ react with light inside circular optical cavity, helping realize quantum sensing/ simulate complex quantum systems... atoms make laser cavity give off laser light for hours... lasing mechanism stabilizes cavity frequency... only occurs in continuous, as opposed to cyclic experiments... quantum computing, ultranarrow linewidth lasers"

Symmetry theory magnetic bottle design confines high-energy alpha particles inside stellarator fusion reactors, keeping them from leaking

https://phys.org/news/2025-05-shortcut-magnetic-bottles-complex-year.html "confinement system described as magnetic bottle... identifying holes/ simulating 100's or 1,000's slightly different designs using Newton's laws too expensive/ Perturbation methods commit gross errors... overcome using shortcut that can help engineers design leak-proof magnetic confinement systems 10 times as fast as the gold standard method, without sacrificing accuracy... also help with a similar but different problem in tokamaks with runaway electrons punching holes in magnetic field of surrounding walls"

SiriNor successfully tested world’s first all-electric jet engine, now ready for real-world integration and refinement

https://medium.com/@hybrid.minds/worlds-first-electric-jet-engine-tested-by-sirinor-in-india-a-breakthrough-for-clean-aviation-750e7faf8502 "eliminates combustion entirely, drastically reducing emissions/ noise levels... high-efficiency electric motor drives multi-stage lightweight composite fan blades, for thrust efficiency/ thermal resilience... modular architecture allows motor, power electronics, thermal management (maintains stable operating temperatures dissipating generated heat), to be independently upgraded, replaced, or customized, enabling faster integration/ easier maintenance... efficient energy conversion... short- to mid-range flights, drones, defense" Related:  Next-Generation Engine Uses Electricity Alone to Generate Thrust https://www.sustainability-times.com/research/the-end-of-jet-fuel-next-generation-engine-uses-electricity-alone-to-generate-thrust-in-historic-aerospace-breakthrough/

Quantum cooling engine fueled by quantum measurements

https://www.eurekalert.org/news-releases/1081127 "linear optical platform simulating a two-stroke, two-qubit engine. In the experiment, they demonstrated various quantum thermodynamic processes by tuning the energy level spacing of the working substance and adjusting the temperature parameters of the bath. They successfully realized a quantum cooling engine driven by quantum measurements and discovered the influence of entanglement on the energy exchange between the working substance and the measurement apparatus"

Hybrid 3D surface combines hydrophobic nanowires/ hydrophilic microchannels to prevent condensation flooding, improving energy efficiency

https://phys.org/news/2025-04-hybrid-surface-combines-hydrophobic-nanowires.html#google_vignette "guides water droplets off surface, preventing accumulation that hampers heat transfer... surface sustains dropwise condensation for high heat transfer/ controlled filmwise condensation in confined regions to guide drainage, enabling stablity across a wide range of temperatures... surface with the narrowest microchannels (named N100) achieved the best performance... stable and high heat transfer coefficient of 38.3 kW/m2·K at a subcooling of 16 K—216% higher... heat exchangers, air conditioners, desalination units." Related: Tapping a new toolbox, engineers buck tradition in high-performing heat exchanger https://techxplore.com/news/2025-05-toolbox-buck-tradition-high-exchanger.html

Non-toxic hydrogel (from mimosa seed)-based bio-piezoelectric nanogenerator/ highly-efficient self-charging supercapacitor device

https://techxplore.com/news/2025-04-mimosa-seed-bio-piezoelectric-device.html#google_vignette "harvests mechanical energy (finger pressure)... supercapacitor's electrodes RGO/NiZTO-based, stores nanogenerator harvested energy ... ~13.5 V, ~2.98 μA piezoelectric output... bio-hydrogel exhibits 24 pC/N piezoelectric coefficient, 40.2% energy conversion efficiency... retains 87.5% of capacitance after 6K cycles, 125.4 Wh/kg energy density at 1200 W/kg power density... future: make less susceptible to biodegradation, enhance its piezoelectric response, scalability... medical implants/ sensors, wearables, robots, IoT"

More accurate/ efficient solutions for combinatorial optimizations by simultaneously scaling number of spins/ interaction bit width

https://www.eurekalert.org/news-releases/1081731   "based on Ising models: sparsely-coupled offer high scalability by allowing more spins but require problem transformations to fit model, fully-coupled allow any problem to be mapped directly without transformation, but with limited number of spins/ interaction bit width... dual identical LSI chip annealing overcomes capacity/ precision limits... >99% accuracy, solves in quicker timeframe... scalable, high-precision, fully-coupled Ising machines... shift scheduling, traffic routing, drug development"

Using modified variant of Kelvin Probe Force Microscopy to detect single spins' photovoltage simplifies quantum sensor/ qubit design

https://www.helmholtz-berlin.de/pubbin/news_seite?nid=29886&sprache=en&seitenid=74699 "complex to read out individual/ local defect spin states optically, overcome by detecting using photo voltage... defects in nitrogen vacancy centers of diamonds can be introduced whose spin states can be manipulated with microwaves, information from single spin read out using light... tiny and compact diamond-based devices, since all that is needed are suitable contacts instead of complex microscopic optics and single-photon detectors... also applicable to other solid-state physics systems"

First observation of non-reciprocal Coulomb drag interactions in Chern insulators of quantum magnetic topological systems

https://www.eurekalert.org/news-releases/1081917 "provides non-contact detection method for quantum states, relevant for qubits in topological quantum computing... Molecular Beam Epitaxy grown V-doped (Bi,Sb)₂Te₃ optimized for high-temperature quantum anomalous Hall effect without external magnetic fields, due to intrinsic magnetization/ chiral edge states... pure Coulomb coupling (no tunneling)... Majorana-based qubit interferometry, key topological quantum computing component... magnetization dynamics may lead to low-power, chiral electronic devices" Related: Ultra-thin bismuth holds unexpected promise for green electronics: researcher https://www.eurekalert.org/news-releases/1082895

Hybrid perovskite betavoltaic cell connects electrode embedded with carbon-14-based quantum dots to a perovskite absorber layer

" https://www.eurekalert.org/news-releases/1082539   "precisely controlled perovskite crystal structure using additives such as methylammonium chloride (MACl) and cesium chloride (CsCl)... 56,000X electron mobility increase, maintains stable power output up to 9 hours continuous operation without need for recharging, high energy radioactive decay conversion efficiency... overcomes lithium- and nickel-based batteries' short lifespans/ heat, moisture vulnerability... space exploration, implantable medical devices (Beta particles cannot penetrate human skin), military"

NeuroSA: Modeled on neurobiology, leverages quantum mechanical behavior to find solutions to complex optimization problems

https://source.washu.edu/2025/05/a-neuro-quantum-leap-in-finding-optimal-solutions/ "solves discovery problems (have new/ unknown solutions), the hardest in machine learning... Fowler-Nordheim annealers, using quantum mechanical tunneling principles setting search behavior (and when to shift where to look), guarantee to find optimal solution, and more reliability, given enough time... implemented on SpiNNaker2 neuromorphic computing platform... optimal protein folding/ configuration discovering new drugs, optimizing logistics in: supply chains, manufacturing, transportation services"

MGA Thermal offers 2 to 3X higher energy storage density, producing steam while concurrently storing additional renewable energy

  https://www.mgathermal.com/news/mga-thermal-achieves-world-first-247-renewable-industrial-steam "MGA converts intermittent renewable electricity into latent heat storage: more compact footprint/ temperature range, more reliable, energy efficient/ affordable than sensible heat storage... on-demand produces steam during phase change... prototype 12m long, 3m wide, 4m tall stores 5 MWh with 500kW thermal dispatch power, providing continuous superheated steam for 24 hours that can power >270 homes, utilizing 3,700 proprietary Miscibility Gap Alloy blocks... can simultaneously charge and discharge energy" Simon Derricutt commented: Sounds good, but it's electricity in and steam out by the look of it - a bit harder to input energy while it's being taken out if you use some heated fluid and a heat exchanger, and much less efficient too, and in any case the renewable power from solar and wind comes as electrical energy. Problem really is what you use that steam for. If y...

Quantum-controlled 2-photon absorption under few-photon irradiation for optical nanoprinting

https://phys.org/news/2025-04-quantum-photon-strategy-powers-generation.html "high light intensity boosts printing speed but degrades resolution/ risks damaging materials, while low light intensity preserves resolution but drastically slows process... overcomes, by precisely controlling number of photons within fs laser pulses enabling efficient 2-photon absorption even under ultra-low photon exposure, breaking diffraction... 26 nm feature sizes, 5 orders magnitude faster large-scale, high-resolution printing.... fabricated optical waveguides, microring resonators, complex bio-microfluidic channels"

Ultrathin single-layer polycrystalline silicon metasurface coatings achieve ultralow light reflection, enhancing solar cell performance

https://www.eurekalert.org/news-releases/1082475 "nearly half of light reaching flat silicon solar cell surface lost to reflection... coatings only work within narrow light frequency range/ incidence angles, overcome combining forward/ inverse design techniques enhanced by AI... works across visible/ near-IR, reflects as little as 2% at direct angles, 4.4% at even steep angles... also, metasurfaces for optics and photonics. It opens the door to multifunctional photonic coatings that could benefit not just solar power but also sensors and other optical devices"

World's most electrically conductive organic molecule doesn't use silicon or metal, may lead to smaller, more efficient computers

https://phys.org/news/2025-05-unique-molecule-smaller-efficient.html "mostly carbon, sulfur, nitrogen organic molecules, allow electrons to migrate across without any energy loss over several tens of nm, stable under ambient conditions... electron conduction decreases exponentially as molecular size increases... result of electron spins' interaction at molecule's 2 ends... could even be integrated with existing nanoelectronic components in a chip and work as an electronic wire or as interconnects between chips... more powerful, cost/ energy efficient computers... future: this molecular system as qubit"

Universal all-optical logic gate reaches 240 GHz at room temperature, enabling optical computers running 100's of times faster

https://phys.org/news/2025-04-universal-optical-logic-gate-ghz.html "universal NOR logical element based on polariton condensates, operates at room temperature, completely optical, has multiple inputs, reproduced/ connected in circuit... bimolecular quenching key role limiting polariton transistor speed, requires sufficiently depleting residual polariton population from previous 1 or 0 logic state... polariton delocalization leads to additional losses... optimal performance: pump pulse duration must be shorter than relevant processes' characteristic times"

New device simplifies optical imaging and sensing

https://www.eurekalert.org/news-releases/1082252 "polarization, enhancing imaging contrast/ resolution, on-chip relies on complex 4-pixel arrays or external polarizers, have limited spectral response, difficulty detecting linear polarization angle/ degree, overcome using wide-spectrum, high-precision polarization detection, torsion unipolar barrier heterojunction device...  2D PdSe₂ dual absorption layer while fine-tuning intermediate MoS₂ barrier layer energy band... enables bias-programmable control over carrier transport paths, leading to groundbreaking performance"

Coupling between artificial atoms and photons enables few nanosecond quantum information readout/ processing, furthers fault-tolerance

https://www.eurekalert.org/news-releases/1082030 "speed enables measurements/ corrections before compounding error rates reduce accuracy/ reliability... 10X faster nonlinear light-matter coupling... quarton coupler superconducting circuit turns 1 qubit into resonator and use other qubit as artificial atom storing quantum information transferred as microwave photons... future: adding additional electronic components, such as filters, producing readout circuit that could be incorporated into larger quantum system... rapidly simulate new materials, faster machine-learning models"

Cone and disc carbon structures for durable, scalable and green sodium- and potassium-ion anodes, reducing reliance on lithium

https://www.eurekalert.org/news-releases/1082154 "scalable pyrolysed hydrocarbon byproduct made into pure graphitic structures... sodium/ potassium ions too big/ interactions too complex to slide in/ out of graphite’s tightly packed layers, overcome with cone/ disc curvature/ spacing welcoming these ions without need for chemical doping or other artificial modifications... stored 230 mAh/g, still holding 151 mAh/g after 2K fast charging cycles... not quite as good using potassium... cheaper, sustainably synthesized from oil/ gas industry byproducts"

Physical, chemical, environmental sensors made by transforming marker ink into graphene-based electric circuits using low-cost materials

https://www.eurekalert.org/news-releases/1082092 "Paint & Scribe any surface... passing laser over red marker ink containing temperature-stable Eosin dye transforms it into porous/ conductive laser-induced conductive graphene... instead of installing circuits/ sensors (often heavy, expensive bulky) on objects... printable electronics, biomedical sensors, robotics, automation, environmental sensors... We are already working on some of these applications. We have also started to study other dyes derived from natural materials, with to the aim of creating green electronics"

Highly integrated bidirectional 1200 V GaN switch with integrated free-wheeling diodes based on wide-bandgap semiconductor gallium nitride

https://www.eurekalert.org/news-releases/1082185 "efficient renewable energy conversion/ storage, compact, fast charging EVs... fabricated using GaN-on-insulator technology... highly insulating silicon carbide/ sapphire carrier substrate improve insulation between components/ increases breakdown voltage... blocks voltage/ conducts current in 2 directions, saving chip space/ reducing conduction losses... also, conventional GaN transistor with gate contact as bidirectional switch in 3-level T-type converter... grid-connected power converters, electric drive systems"

Skia technique improves data center performance nearly 2X versus adding the same amount of storage to the existing hardware

https://techxplore.com/news/2025-04-skia-technique-decodes-shadow-boost.html "instruction stream often too large, difficult to predict/ process... Fetch Directed Instruction Prefetching predicts/ retrieves instructions before needed, for quicker performance/ less power consumption... overcomes when Branch Target Buffer faults, by identifying/ decoding in unused bytes, then storing in Shadow Branch Buffer memory, accessible alongside Branch Target Buffer... most future instructions already available, minimizing hardware costs... data centers"

Smart metasurface technology: A powerless solution to multipath signal interference, for more reliable wireless IoT

https://www.eurekalert.org/news-releases/1082003 "multipath challenges: time delays, altered amplitudes, ghosting, fading... passive metasurface-based filtering using time-varying interlocking mechanism incorporating metasurface panels/ internally coupled circuit elements, including metal-oxide-semiconductor field-effect transistors... enhances 1st incoming signal 10 dB, rejecting time-delayed signals from other angles, without active biasing/ control systems... uses simplified antenna designs/ commercial diode products, few: calculation/ modulation/ demodulation circuits"

Squishy semiconductor transforms under pressure for dense, fast, long-lasting, energy-efficient data storage

https://www.eurekalert.org/news-releases/1081790 "non-volatile phase change memory of alternating zinc telluride/ ethylenediamine layers... 2 phase transitions at low 2.1 and 3.3 GPa pressure (1/10th of usual pressure needed) shrinking material up to 8% potentially enabling digital information encoding... additional applications: (1) different properties depending on which direction squeezed, adding additional turability, (2) photonics, because emits UV whose glow might shift depending on phase, useful in fiber optics or optical computing... future: effect of temperature changes"

Miura-ori origami-inspired 3D printed ceramics with a soft polymer coating can bend under pressure without breaking

https://www.eurekalert.org/news-releases/1081477 "folding patterns change ceramics from fragile to tough/ flexible... origami pattern that folds/ stays flat, coated with stretchable, biocompatible polymer... flexes/ recovers when compressed in different directions... polymer coating introduced just enough flexibility to prevent sudden breakage under both static and cyclic compression... coated versions consistently showed greater toughness, especially in directions where the original ceramic was weakest... medical prosthetics, impact-resistant aerospace/ robotic components" Related: Origami points to new materials that 'breathe' and twist on command https://techxplore.com/news/2025-05-origami-materials.html

Subwavelength localized helicity-independent magnetic bit switching using an ultrafast laser pulse and plasmonic gold nanostructures

https://www.eurekalert.org/news-releases/1081550 "all-optical, single fs laser pulse, bit-switching without external magnetic field or complex wiring... overcomes nanoscale heat transfer/ magnetic domain wall propagation limits on minimum achievable bit size... electron beam lithography on 10 nm GdTbCo magnetic film generating large magnetic anisotropy... magnetic switching using 370 fs 1030 nm wavelength laser pulse in 240 nm width areas... nanostructure not allowing plasmonic resonance creates dipole-like far field scattering domain imprint on magnetic film"

Hydrogel-infused 3D-printed ceramics offers design flexibility, reduced material waste, accelerated production and tailored applications

https://phys.org/news/2025-04-hydrogel-infused-additive-ceramics.html#google_vignette "printed product exhibits high thermal stability, chemical resistance, mechanical strength... separates printing step from ceramic material... viscous orange resin used for 3D printing initial gel, converted into hydrogel via infusion with metal salt solution, then burn off organic components and convert metal salts into metal oxides... hydrogel formulation/ metal salts types optimizes ceramic quality/ shape, determining ceramic's density, porosity and strength... aerospace... future: expanding to new materials/ applications"

RHyME: Robotic framework powered by artificial intelligence learns after watching single how-to video

https://techxplore.com/news/2025-04-robot-videos.html "less cost, time, energy to train... deals with mismatch between how humans/ robots do tasks... combs its videos drawing inspiration from similar actions... requires just 30 minutes training data... >50% increased task success... programming robots currently takes thousands of hours of tele-operation to teach the robot how to do tasks... that's just impossible... with RHyME, we're moving away from that and learning to train robots in a more scalable way"

All-optical nonlinear activation based on sound waves enables synthetic frequency dimensional neural networks/ machine learning accelerators

https://www.eurekalert.org/news-releases/1080406 "simple neural network of weighted sum of bits of incoming information/ nonlinear activation functions ReLU, sigmoid, or tanh functions, transforming inputs' weighted sum into artificial neural network... optical information does not leave optical domain, directly processed in optical fibers or photonic waveguides... stimulated Brillouin scattering causes optical nonlinear change in input information depending on optical intensity... preserves optical data bandwidth, avoids electro-optic conversion, maintains signal coherence"

Using two photonic crystals to concentrate light on a chip, in a volume as small as the wavelength itself

https://phys.org/news/2025-04-mechanism-photonic-crystal-chip.html "broader spectrum of wavelengths... 2 mirrored pattern crystals next to each other create waveguide at their boundary, where light movement confined... light conduction topologically protected: scattering/ reflection by crystal imperfection suppressed, ending waveguide with wall, eventually bouncing back through waveguide after delay... inherently works for multiple wavelengths, overcoming light focusing resonance limits... also, sound waves, electrons in specific crystals... quantum communication, sensors, lasers"

Tracking photogenerated charge transfer in electrolytes enables designing efficient photocatalysts and optimizing reaction conditions

https://phys.org/news/2025-04-tracking-photogenerated-electrolytes.html#google_vignette "photocatalysis involves interplay between surface charges/ charge transfer at catalyst-electrolyte interface... directly measures nanoscale surface charges (potential/ photovoltage) in liquid electrolyte environments using charged probe, isolating electrostatic forces from long-range interactions, mapping electric field distribution within electrical double layer... surface charges at solid-liquid interface create additional driving force, pulling photogenerated electrons to surface, driving charge transfer reaction"

Light boosts exciton transport in organic molecular crystal, improving optoelectronic device performance

https://www.eurekalert.org/news-releases/1080197 "modifies organic semiconductor molecular crystal structure via light irradiation, enhancing exciton transport properties... exciton transport diffusion coefficient increased 3 orders magnitude (from ~10-3 cm2 s-1 to over 1 cm2 s-1), and diffusion length extended from <50 nm to nearly 1 µm... both laser and cost-effective incoherent LED irradiation induced this enhancement, with the improved transport properties persisting for months... future: resolving structural modifications' mechanistic link to transport enhancement"

Sustainable spintronics using iron oxide compound hematite: earth-abundant/ environmentally friendly (unlike yttrium iron garnet)

https://bioengineer.org/unlocking-sustainable-spintronics-with-an-abundant-earth-mineral/ "high-frequency signal processing: (1) overcomes spin wave signals not effectively resetting magnetic bits to allow for overwriting, (2) mitigates Joule heating energy loss... interference patterns between two separate excitation modes of spin waves, or magnon modes... importance of having two magnon modes cannot be overstated; it enables spin currents to be manipulated more flexibly... switching back/ forth between these two polarizations enables scalable/ efficient advanced data encoding/ storage"

Cold sintering manufacturing approach solves fabrication challenge for solid-state electrolytes

https://techxplore.com/news/2025-04-cold-approach-fabrication-solid-state.html "high temperature hinders production, grain boundaries acting as defects hinder conductive ion transport... small amount of powder loaded in system's center cold sintered using heat, pressure, liquid solvent to create dense highly conductive/ stable polymer-in-ceramic composite... enables high-voltage cathodes, allowing battery to generate more energy... cold sintering also applicable to semiconductor and other manufacturing... future: support for large-scale production and recyclability" Related: Halogen-Free Polymer Electrolytes: A Sustainable Energy Solution https://www.azom.com/news.aspx?newsID=64531 How to make electrolytes more efficiently? Designing electrolytes by thermodynamics https://www.eurekalert.org/news-releases/1083847

Ferroelectric RAM performs calculations within memory without requiring separate processor; energy efficient, especially for edge devices

https://techxplore.com/news/2025-04-ferroelectric-device-memory.html "no multi-step energy-intensive processes/ latency... record data, transmit to memory then to microcontroller performing differential operations... ferroelectric capacitors as differentiators: inherent polarization when external electric field not applied/ reversed upon application of electric field, enabling storage in their polarization/ dipole alignment... capacitor remembers how much charge it holds until discharged, which translates to information storage as voltage levels across capacitor, functioning as RAM/  CPU"

Enhancing organic thermoelectric properties 2 and 3X by p- and n-type doping of single-walled carbon nanotubes with solution processing

https://www.eurekalert.org/news-releases/1081546 "p-type polyethylene glycol doping slightly increased Seebeck coefficient, 60% increased electrical conductivity, 303.17 ± 46.25 μW m⁻1 K⁻2 power factor >2X that of undoped, energy filtering effect: Fermi energy level decreased/ work function increased... n-type polyethyleneimine doping caused negative Seebeck coefficient, greatly increased electrical conductivity, 418.49 ± 46.30 μW m⁻1 K⁻2 power factor 3X that of undoped, charge transfer process: Fermi energy level increased/ work function decreased"

Grown/ peeled ultrathin pyroelectric films that sense heat and other signals enable lightweight scopes and night-vision glasses

https://news.mit.edu/2025/new-electronic-skin-could-enable-lightweight-night-vision-glasses-0423 "produces electric current in response to temperature changes across far-IR spectrum... thinner the better at sensing subtle thermal variations, 10 nm so highly accurate... sensors, autonomous driving in fog... directly worn on glasses for night vision: broad-spectrum IR room-temperature sensitivity, lightweight, no cooling needed ... peel method itself also has numerous other applications: semiconducting films, flexible electronics., smart contact lenses, wearable sensing fabrics, stretchy solar cells, bendable displays"

Major breakthrough: Non-toxic carbon/ hydrogen- based compounds an alternative to fluorine- based forever chemicals

https://scitechdaily.com/major-breakthrough-non-toxic-alternative-to-forever-chemicals-discovered/ "water/ stain-resistant... small size/ high electronegativity allows fluorine to form tight, durable molecular structures... PFAS' bulky fragments feature in other common chemical systems like fats/ fuels, over 10 years of their study created modified chemicals with these positive attributes and are also much safer... fire-fighting foam, furniture, food packaging, cookware, make-up, toilet tissue"

XUI quickly/ efficiently notifies CPU of events to handle, without relying on polling and waste CPU cores, reducing interrupt overhead

https://www.eurekalert.org/news-releases/1081518 "All the modern high-performance processors right now flush the in-flight instructions when they receive an interrupt, but this work shows that we don’t actually need to flush those instructions, leading to efficiency of dealing with interrupts... more efficient than polling, which has an entire CPU core constantly check for events, like incoming tasks flows... awarded the 2025 Best Paper Award at the 2025 ASPLOS Conference"

Lp-Convolution: Brain-inspired AI improves accuracy/ efficiency of machine vision image recognition while reducing computational burden

https://www.eurekalert.org/news-releases/1081245 "multivariate p-generalized normal distribution reshapes Convolutional Neural Network filters dynamically (stretching horizontally or vertically based on task, like how human brain selectively focuses on relevant details), unlike traditional method that uses fixed square filters... increasing filter size to 7×7 kernels or larger usually does not improve performance despite adding more parameters, overcome using flexible, connectivity patterns focusing on most relevant parts of image... also robust against corrupted data"

Microsoft introduces an AI model that runs on a regular CPU instead of a GPU chip, using much less memory/ energy

https://techxplore.com/news/2025-04-microsoft-ai-regular-cpus.html "GPU's massive computing power for training on massive amounts of data, most energy-intensity involves storing/ processing weights in 8- or 16-bit floating point numbers... new method avoids floating point altogether, instead using 1-bit architecture using 3 value (-1, 0, 1) and allowing only addition/ subtraction during processing, easily done using CPU... does as well or better, using less memory/ energy... created runtime bitnet.cpp for it to run on local computer or phone, no need for data center or even internet"

Light-induced DNA detection enables more affordable, ultra-sensitive/ precise, ultra-fast genetic analysis without need for PCR amplification

https://www.eurekalert.org/news-releases/1081114 "avoids PCR testing's centralized labs, bulky equipment, specially trained personnel... directly detects DNA by concentrating it enhancing specificity through strong optical forces/ photothermal effect... gold nanoparticle/ polystyrene microparticle short DNA sequence probes bind matching strands together, detectable through 5 minute fluorescence mutation detection with 1 order magnitude higher sensitivity than PCR... diagnosing infectious disease/ early-stage cancer, analyzing food safety/ environmental DNA"

Researchers develop compact superradiant Smith-Purcell device with an ultra-narrow and continuously tunable spectral linewidth

https://phys.org/news/2025-04-compact-superradiant-smith-purcell-device.html "train of free electron radiation bunches passing over periodic grating... overcomes electron kinetic energy instability, coulomb effect, finite number of electron bunches worsening radiation linewidth, equipment's large size... ~0.3 THz pump-induced frequency, with radiation linewidth continuously tuned from 900 to 0.3 kHz... electron pre-bunching, electron-compression and harmonic-emission sections... on-chip electron acceleration for higher electron acceleration gradient... imaging, sensing, communication"

Integrated encryption and communication framework achieves record 1 Tb/s secure transmission over 1,200-km optical fiber

https://www.eurekalert.org/news-releases/1081131 "overcomes sacrificing transmission speed for security, by directly integrating encryption using end-to-end deep learning, dynamically optimizing geometric constellation shaping... maximizes mutual information for authorized users while reducing it for eavesdroppers to <0.2 bits/ symbol for illegal users, rendering intercepted data indistinguishable from noise... dynamic GCS: each transmitted symbol encrypted using unique key... scalable/ compatible with existing infrastructure... global data/ cloud centers, 6G networks"

Breakthrough in solar thermoelectric generation: organic radical photothermal cocrystals lead the way

https://www.eurekalert.org/news-releases/1081128 "67.2% photothermal conversion efficiency under 808 nm irradiation with 0.367 W cm-2 intensity... self-assembling microrods with high crystallinity, strong charge transfer interaction between COR/ Br2NDA, broad absorption spectrum spanning 350-1100 nm, with pronounced redshift/ robust CT interaction, nearly complete photoluminescence quenching, thermally stable... incorporated into transparent resin becoming photothermal ink, coated onto thermoelectric generator... wearables, IoT, personal thermal management" Related: Sponge-like carbon nanotube thermoelectric generator easily molds to complex shapes and powers sensors https://techxplore.com/news/2025-04-sponge-carbon-nanotube-thermoelectric-generator.html

Bound States in the Continuum: Mechanical waves trapped indefinitely without any energy leakage within a compact, single resonator

https://www.eurekalert.org/news-releases/1080225 "overcomes resonators gradually losing energy, requiring constant energy input... whirlpools remain in place even as there are flows around them... adjusting how cylindrical granular quartz rods touch each other controls way mechanical waves interact at contact boundaries, special alignment causes polarization-protection... >1K quality factors... many cylinders connected in chain enables trapped wave modes to extend throughout chain without dispersing... low-loss: energy harvesting, sensors/ signalers, communications" Simon Derricutt commented: " looks somewhat like a resonator, but might be somewhat over-claimed here since it has a Q of 1000 and thus it is not perfect wave-trapping and won't keep oscillating indefinitely. Quartz resonators can have Qs of 10,000 or more and thus are better at trapping energy than these BiCs. I'm not seeing from the picture at https://www.eurekalert.org/... exactly how the cylind...

Novel sintering technology yields ultrahigh voltage-gradient ZnO-based varistor ceramics, widely used in overvoltage protection

https://www.eurekalert.org/news-releases/1080678 "enhances voltage gradient without compromising other performances... low temperature densification hybrid cold sintering/ spark plasma sintering and post-annealing process reduces energy consumption, enables fine/ homogeneous microstructure, prevent Bi-rich phase volatilization at grain boundaries, ultrahigh ~1832.71 V/mm voltage gradient, high ~106.69 nonlinear coefficient, low <0.2 μA/cm² leakage current density... high-resistance grain boundaries producing increased Schottky barrier height, better performance"

Q-CTRL's Ironstone Opal GPS-like positioning: passive, undetectable, cannot be jammed/ spoofed, 50X better than conventional GPS alternatives

  https://insidegnss.com/q-ctrl-overcomes-gps-denial-with-quantum-sensing/ "quantum sensor detects tiny, otherwise imperceptible signals arising from Earth’s structure serving as magnetic landmarks for navigation... sensitivity/ stability needed to continuously see these landmarks from moving vehicle... AI software shields delicate quantum sensors against interference, device miniaturized by trading hardware for software... aerospace, defense, autonomous vehicles"

Coupled cavity arrays of resonators powering small, more precise digital quantum computers/ analog quantum simulations

https://phys.org/news/2025-04-smaller-smarter-blocks-future-quantum.html#google_vignette "tailored resonator geometry selects wavelengths at which photons can/ cannot pass... up to 100 high-quality coupled cavities (arranged in repeating pattern where each cavity interacts with neighbors) in compact array where each cavity miniaturized, unwanted disorder in resonant microwave frequencies minimized using superconductor niobium nitride relying on high kinetic inductance...  mimics photonic topological insulator guiding light along its edges in controlled/ unusual way... future: coupling to artificial atoms" Related: Novel architecture improves control of microwave resonators for quantum computers https://phys.org/news/2025-05-architecture-microwave-resonators-quantum.html

Researchers develop smaller, more efficient space-tolerant computer chips

https://techxplore.com/news/2025-04-smaller-efficient-space-tolerant-chips.html#google_vignette "challenging space environment: radiation alters data storage elements like flip-flops/ also extreme temperatures, debris... more compact rad-hard chips with equivalent or better radiation tolerance leads to lower manufacturing costs, higher performance/ energy efficiency... achieved in the way components/ transistors arranged... uses single basic flip-flops achieving same radiation tolerance without bulky triple modular redundancy... full system-on-a-chip prototypes to be tested/ deployed on a cubesat in 2026" Related: 3D-Printed Hydrogels: A Breakthrough in Radiation Shielding for Space Exploration https://i-hls.com/archives/128586 Giving small satellites a bigger impact with an advanced wireless chip https://techxplore.com/news/2025-05-small-satellites-bigger-impact-advanced.html

Scientists discover pioneering technique to accelerate accurate quantum measurements

https://techxplore.com/news/2025-04-scientists-technique-accurate-quantum.html "quantum systems fragile/ disturbale causing errors... overcomes only increasing accuracy by sacrificing speed, by trading space for time using additional qubits, increasing information amount gathered in fixed time, so can be more confident about answer... relationship continues with additional qubits... measurement quality maintained, or even enhanced, even as it is sped up... potential to become a standard part of the quantum read-out process"

Overcoming AI making spurious correlations causing decisions based on unimportant and potentially misleading information

https://techxplore.com/news/2025-04-technique-spurious-problem-ai.html "spurious correlations traced to very small subset of training data, generally caused by simplicity bias during training... overcome even when have no idea what spurious correlations AI is relying on, by removing a small portion of training data... we can measure each sample's difficulty based on how model behaved during training, most difficult samples in dataset noisy/ ambiguous, most likely relying on irrelevant information... this elimination overcomes spurious correlations, without causing significant adverse effects"

Anode combines hard carbon with tin for high power, stability, energy density, fast charging, longer lifespan lithium- and sodium- ion batteries

https://www.eurekalert.org/news-releases/1080996 "due to low melting point, difficult to make tin particles small enough to overcome problematic volume expansion during cycling, reducing stability, overcome using sol–gel process followed by thermal reduction, embedding uniformly distributed sub-10 nm tin nanoparticles within hard carbon matrix... tin nanoparticles active materials, but also catalyst promoting hard carbon crystallization... stable over 1,500 cycles under 20-minute fast-charging, 1.5X higher volumetric energy density, versatile across multiple battery platforms"

Poxiao: Rice-sized memory device capable of erasing and rewriting data 100,000 times faster than before

https://www.scmp.com/news/china/science/article/3306971/china-unveils-worlds-fastest-hard-drive-poxiao-dawn-new-flash-memory?module=top_story&pgtype=homepage "world's fastest flash memory erases/ rewrites data in 400 ps... overcomes limitations: volatile memory – like SRAM and DRAM – offers high speeds but suffers from low capacity/ high power consumption/ high manufacturing costs,/ data loss when power is cut, non-volatile memory – like flash storage – offers larger capacity/ lower power consumption/ data persistence but lags far behind in speed... AI that can read, write as fast as it computes"

Single-crystal oxide spin Hall materials heterogeneous integration on silicon substrates for high-performance oxide-based spintronics

https://phys.org/news/2025-04-method-enables-high-oxide-based.html "combines transfer technology with epitaxial deposition... created single-crystal SrRuO3 films on silicon substrates, prepared corresponding spin-orbit torque devices... high 6.1×104 ħ/2e S·m-1 spin Hall conductivity enabling magnetization switching with low 1.3×1010 A·m-2 critical current density... multi-state magnetization switching enabling biological synaptic/ neuronal function simulation... artificial neural network utilizing these achieved 88% accuracy... low-power electronics, neuromorphic computing"

On-chip quantum breakthrough: 60-mode large-scale entangled cluster state achieved with optical microresonators

https://www.eurekalert.org/news-releases/1080871 "order magnitude larger... . overcomes scaling limited probabilistic methods, by using continuous-variable deterministically created entanglement, ensuring consistent/ reliable operation... 3 synchronized laser multiple-pump: primary pump initiates degenerate 4-wave mixing generating symmetric entangled light mode pairs, additional pumps contribute via non-degenerate 4-wave mixing expanding entangled network further... up to 3 dB squeezing... quantum computers, ultra-secure communications, and advanced sensors"

Additively manufactured heat exchanger is smaller and lighter, with dramatically superior functionality,

https://techxplore.com/news/2025-04-additively-exchanger-traditional.html "precise 3D shapes overcome manufacturing limitations, optimizing: heat transfer rate, work needed to achieve transfer, heat exchanger size... links large and small passages promoting high heat transfer/ easy fluid motion, allows unconventional fluid mixing/ routing... 2-phase heat exchanger, refrigerant comes in as vapor, cools, leaves as liquid, transferring its heat to cooling water also flowing through heat exchanger... 30% to 50% better for same power... increased volumetric/ gravimetric power density... mobile: cars, ships, aircraft" Related: Optimized 3D printed heat exchanger more effective and achieved a 27% higher power density https://engineering.wisc.edu/news/tapping-a-new-toolbox-engineers-buck-tradition-in-new-high-performing-heat-exchanger/

Full-color-emitting upconversion nanoparticles with core@multi-shell structure for color displays with ultra-high color reproducibility

https://www.eurekalert.org/news-releases/1079407 "RGB at different excitation wavelengths (core emits green, inner shell red, outer shell blue) from single nanoparticle by absorbing/ adjusting 3 near-IR wavelengths, for glasses-free displays without eye fatigue... overcomes low brightness/ limited color reproduction range due to narrow color gamut... high color purity/ strong luminescence intensity... 94.2% wide color gamut of NTSC color space, 133% of sRGB color space... future: transparent upconversion nanoparticle- polymer composites to display various color images"

Ultrafast multivalley optical switching in germanium films controls transparency at multiple wavelengths using a single-color pulse laser

https://www.eurekalert.org/news-releases/1080525 "optical bleaching induces nonlinear effect temporarily altering material's properties... not based on microelectromechanics requiring electricity resulting in slow response... overcomes single-color optical nonlinearities' limitations... ultrafast optical switching in both Γ and L valleys, due to intravalley/ intervalley scattering... 240 meV split-off energy at L high symmetric point... Ge is a key material for advanced optical switching, with promising applications in high-speed data transmission and computing"

Niron’s eco-friendly magnets are developed from iron and nitrogen, not rare-earths

  https://www.mprnews.org/story/2024/10/11/minnesota-niron-magnetics-company-scales-up-greener-options "iron oxide powder from iron ore, byproduct of steel making... run through reactors replacing oxygen with nitrogen, creating iron nitride powder, which is magnetic... byproducts also eco-friendly: salt, water, water vapor... cleaner production, recycling, disposal... customers include: General Motors, Magna Powertrain, Samsung, Harman Audio, Allison Transmission, Volvo, Western Digital... 1,500 tons magnets/ year... stable even at high temperatures such as in engines... EV's, wind turbines, audio products, defense/ weaponry"

Light-powering, in chips handling linear mathematical operations, extended to nonlinear functions used in training neural networks

https://www.eurekalert.org/news-releases/1080623 "programmable, energy saving... light carrying input dat passes through special semiconductor, 2nd pump beam shines in from above, adjusting reaction... changing shape/ intensity of pump beam controls how signal light absorbed, transmitted, amplified, programming chip to perform different nonlinear functions... > 97% accuracy on simple nonlinear decision, >96% on machine learning standard Iris flower dataset... 4 nonlinear optical equivalent to 20 linear electronic... training AI computers at speed of light"

Lithium oxide sublimation vapor for faster, more efficient, and cheaper scaling up of nickel-rich precursor lithium cathode manufacturing

https://techxplore.com/news/2025-04-lithium-oxide-sublimation-doors-cheaper.html "mixing Li2O with nickel-rich precursors at 900°C/ ambient pressure accelerates forming single crystals, helping batteries last longer, and simplifying manufacturing... overcomes polycrystal formation leading to cracking, overcome using single-crystal structures providing even distribution... directly converts/ recycles spent polycrystals into single crystals... single crystals withstand 1K charge/discharge cycles... time/ energy savings...  projected availability 2026"

Thin-film solar cell made from non-toxic, Earth-abundant copper, barium, tin, sulfur, and selenium, is 28% efficient

https://www.metaltechnews.com/story/2025/04/16/tech-metals/mexican-thin-film-solar-doubles-efficiency/2231.html "anti-reflection coating reduces amount of light lost at surface, allows more solar energy to enter cell... replaced molybdenum with nickel in back contact layer, improving cell's electrical conductivity, allowing current to flow more freely... back surface field layer made of copper iodide, strengthening electric field at the junction, reducing electron recombination and increasing overall performance... fine-tuned thickness/ carrier density of each layer, optimizing how charge moves within cell" Related: Improving the performance of Cu₂SrSnS₄ solar cells with inorganic hole transport layers https://techxplore.com/news/2025-05-cusrsns-solar-cells-inorganic-hole.html

MXenes consisting mainly of titanium/ carbon, produced using electrochemistry instead of extremely dangerous/ toxic hydrofluoric acid

https://www.eurekalert.org/news-releases/1080421 "no: strict handling regulations, special/ expensive lab equipment, costly waste disposal... short electrical pulsing improves electrochemical etching. initiates reaction at interfaces, breaking aluminium bonds in MAX phase... only aluminium atoms removed, leaving electrochemical MXenes with small hydrogen bubbles forming on MAX phase materials, cleaning/ reactivating the surface, sustaining reaction for longer period/ large EC-MXenes quantity produced... electromagnetic shielding, energy storage, sensors, solid lubricants"

Membrane-free aqueous/ organic bi-layer electrolytes with reduced interface resistance and mixing between the aqueous and organic phases

https://eng.umd.edu/news/story/novel-energy-storage-could-push-batteries-for-electric-aviation-grid-power "water-based electrolytes with added super-lithophilic ionophores that broadens electrochemical stability window to 0.0-4.9 V, expanding energy density... makes compatible with high-energy lithium metal or graphite anodes... retains stability/ durability after >2K cycles... electric aviation, large-scale low-carbon grid storage, lithium extraction from seawater" Related: A new strategy for high performance energy storage: Breakthrough in aqueous metal ion batteries https://www.eurekalert.org/news-releases/1083860

SorbiForce has developed closed-loop metal-free organic batteries made from carbon, water, salt and agricultural waste

https://www.pv-magazine.com/2025/04/11/carbon-battery-startup-aims-to-make-energy-storage-circular/ "sorption transporting electrons via ultraporous carbon inner layer, cathode/ anode also carbon-based, so battery entirely nonflammable... ultraporous carbon improves with age, up to 30 years life as long as can add more water... 95% of battery can be broken down into organic materials, other 5% reusable... 60 to 150 kWh pilot projects in 2nd half 2025 with $5 million seed funding, commercial sales end of year... scalable, low capex, high demand... lifespan >6K cycles, module stackability"

Catalyst of platinum nanoparticles protected with graphene nanopockets enhances fuel cell lifetime, durability and efficiency

https://phys.org/news/2025-04-pt-nano-catalyst-graphene-pockets.html#google_vignette "overcomes catalysts' tendency to gradually dissolve, some atoms redepositing onto other particles, causing them to become larger, reducing catalyst area that can speed up reactions, causing performance decline... protected nanoparticles supported/ confined within Ketjenblack carbon pores... 0.74 A mg⁻¹ initial mass activity, 1.08 W cm⁻² power density, <1.1% power loss after 90K voltage cycle accelerated stress test, >200K hour lifetime... future: advanced carbon support, electrode architecture, ionomer components" Related:  UCLA Breakthrough Extends Fuel Cell Lifespan Beyond 200,000 hours https://www.eurekalert.org/news-releases/1082000

SMACool: First major breakthrough in air conditioning in 100 years replaces toxic refrigerants with quiet, more efficient metal tubes

https://techxplore.com/news/2025-04-smarter-cooling-technology-tackles-climate.html "recyclable nitinol nickel-titanium alloy phase transforms while remaining solid, instead of from liquid to gas and back again... elastocaloric cooling: heats up with mechanical stress, cools when relieved... nitinol wires biocompatible... so far only 15% (could reach up to 70%) efficient, while vapor compression 20-30%... nitinol wires degrade (fatigue) quickly when stretched repeatedly to induce phase change, overcome compressing instead of stretching, reducing physical stress for practically unlimited lifespan... >30°C range" Related:  TCCI Manufacturing and TekModo Unveil Breakthrough HVAC Technology Eliminating Rooftop Units with Off-Grid Sustainable Climate Systems https://financialpost.com/pmn/business-wire-news-releases-pmn/tcci-manufacturing-and-tekmodo-unveil-breakthrough-hvac-technology-eliminating-rooftop-units-with-off-grid-sustainable-climate-systems Blue Frontier air conditio...

Scalable high-quality cadmium chalcogenide quantum dot production through continuous flow using biocompatible water-soluble source

https://www.eurekalert.org/news-releases/1080288 "peptide synthesis using water-soluble reductant TCEP (tris(2-carboxyethyl)phosphine): safer, versatile chalcogen transfer agent... interaction between TCEP and biocompatible chalcogens (sulfur, selenium, tellurium)... improves productivity, significantly reducing: waste, energy consumption, need for post-processing... future: exploring greener, less toxic alternatives to cadmium that still deliver top performance"

Waste Cochlospermum Gossypium tree bark gum prevents supercapacitors from degrading over 10's of 1,000's of charging cycles

https://techxplore.com/news/2025-04-tree-gum-sustainably-supercharge-supercapacitor.html#google_vignette "better-performing, more eco-friendly... acidic electrolytes cause unwanted side reactions with their metal electrodes, reducing ability to hold full charge over time... polysaccharide kondagogu gum plus sodium alginate becomes spongelike biopolymer KS... added to acidic electrolyte creates protective layer over carbon electrodes, still allowing ion transport... 93% (instead of 58%) of full energy capacity after 30,000 cycles... waste gum is otherwise a headache for the Indian government to dispose of"

On-chip multi-channel near-far field terahertz vortices with parity breaking and active modulation exhibit high purity and low crosstalk

https://www.eurekalert.org/news-releases/1080199 "helical dielectric metasurface, liquid crystal layer, helical plasmonic metasurface... external voltage switches near/far field vortices through spin-orbital angular momentum coupling/ photon state superposition... flexible/ dynamic free space/ on chip THz manipulation, promoting development of integrated photonic systems... THz high-speed communication, intelligent perception/ computing, communication, radar/ substance detection, light-field regulation devices, vortex beam generators, high-resolution imaging"

Gigaflow cache software streamlines cloud data center traffic, with 51% higher hit rate and 90% lower misses for programmable SmartNICs

https://techxplore.com/news/2025-04-gigaflow-cache-cloud-traffic-higher.html "server-based architecture cannot work at cloud... hypervisor virtual machines deploying programs/ applications operating at once on single server maximize efficiency... caches shared rule segments instead of new data packets, processing steps multiple flows have in common instead of processing full flows, frequently used rules easy to reach... 18% fewer cache entries capture 450X larger rule space... cache divided into smaller rule-processing steps, allowing combinations of smaller steps in many different ways"

World’s thinnest heat loop pipe cools electronic components in smartphones and tablets, with stable, smooth water circulation

https://www.eurekalert.org/news-releases/1080254 "handles higher heat loads... wick (sponge) generates capillary action driving pump transporting heat without using electricity... flow path in thin copper sheets, including wick of sintered copper powder, all laser welded... water absorbs heat, evaporates, moves to cooler area, condenses back to liquid, repeat... transports 10 W heat... heat transport capacity 45X that of copper, 10X that of graphite sheets... 0.3 mm thick... cooling potentially extends battery life... gaming, video processing" Related: Hexagonal boron nitride crystal moves heat like a beam of light to cool electronics https://engineering.virginia.edu/news-events/news/cooler-faster-better-uva-engineers-uncover-new-way-stop-electronics-overheating