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Showing posts with the label atoms

Designing material’s electronic behavior at single-atom-scale: a new fundamental building block for the future of manufacturing

https://www.eurekalert.org/news-releases/1124931 "graphene nanoribbons lack ability to turn electricity on/ off making it hard to use for computer chips without complex modifications, overcome using single chain combining 2 different types of molecules: electron donors that want to give up electrons/ electron acceptors that want to take in electrons... pristine: built on gold surface in vacuum... organic/ flexible electronics in smart clothing, bioelectronic brain-machine interface, in vivo sensors, ultra-efficient thin-film PV with fine-tuned donor-acceptor sequences" Related: Natural-language AI helps chemists design molecules step by step https://phys.org/news/2026-04-natural-language-ai-chemists-molecules.html Redesigning metals at the atomic level to boost future technology https://www.eurekalert.org/news-releases/1125778

Scientists capture atoms in motion, unlocking next-generation memory technology

https://phys.org/news/2026-03-scientists-capture-atoms-motion-generation.html "first real-time atomic maps of switching behavior in next-generation memory materials... atomic switches made of fluorite-type ferroelectrics store data at a scale where conventional silicon-based materials fail... data is stored by moving atom fraction of nm in fractions of second, flipping bit from 0 to 1... doesn't just jump from Points A to B; moves through intermediate atomic pathways that can be steered or controlled by slightly altering the chemical composition of the material"

Microlenses in cavity focus light onto single atoms for efficient collection of photons, which carry quantum information stored in qubits

https://www.eurekalert.org/news-releases/1114314 "extracting data from individual atoms slow/ inefficient since atoms emit photons in all directions... overcome using scalable optical cavities enabling parallel extraction for all qubits at once... results in fewer light bounces, but far more effective capturing data from nearly translucent atoms... faster data rates, large-scale distributed networks, high-fidelity readout... guides emitted light toward particular direction... scaling quantum computing to millions of qubits"

Atomic-scale skeletal editing removes single atom from molecular core, streamlining advanced materials/ pharmaceuticals development

https://phys.org/news/2026-01-molecular-surgery-deleting-atom-molecule.html "modifying molecule's outer edges is common, but difficult to do with molecular core which is highly stable... overcome applying voltage pulses using scanning probe microscope tip, at –268 °C, removing specific atoms...deleted 1 oxygen atom: forced to periphery or be removed entirely from 20 carbon atoms' organic precursor molecule... transforms skeleton without rebuilding entire structure... drug discovery, plastic upcycling, creation of unstable molecules not existing in standard liquid-phase chemistry" Related: Electron beams guide atomic-scale structural transformations in crystals https://phys.org/news/2026-01-electron-atomic-scale-crystals.html

Raman quantum memory with 94.6% fidelity/ 98.91% noise efficiencies, offering a broadband advantage for faster optical signal storage

https://phys.org/news/2025-11-raman-quantum-memory-unity.html "atom-light interaction spatiotemporal mapping control, while quantum information is stored... breaks efficiency/ fidelity trade-off... Raman quantum memory based on warm rubidium-87 vapor... long-distance quantum communication, quantum computers, and distributed quantum sensing systems.,, future: exploring new physics-driven principles and integrating the memory into quantum repeaters for fault-tolerant quantum computing architectures and quantum networks" Related: Physicists unveil system to solve long-standing barrier to new generation of supercomputers https://phys.org/news/2025-11-physicists-unveil-barrier-generation-supercomputers.html Related:  Machine learning reveals hidden landscape of robust information storage https://phys.org/news/2026-02-machine-reveals-hidden-landscape-robust.html#google_vignette

Temporally oscillating magnetic field generates Floquet scattering resonances enabling atomic interaction magnetic control in ultra-cold gas

https://phys.org/news/2025-10-atomic-interactions-ultracold-gas-button.html "atoms' attraction/ repulsion, resonances, scattering behavior controllable over wide range by manipulating magnetic field oscillation's strength/ frequency using external magnet... this wide range control goes beyond using Feshbach scattering resonances where quantum mechanical systems' interaction was fixed at single value... quantum gases achieving previously unattainable states, dynamically generating bound states... manipulation analogous to using push button controls"

Deterministic atom-mediated entanglement replaces probabilistic photon interactions with high fidelity photon-atom gates.

https://thequantuminsider.com/2025/07/07/deterministic-entanglement-for-photonic-quantum-computing-atom-as-interface/ "single rubidium-87 atoms coupled to optical resonators generate single photons entangled through SWAP/ CZ gates... modular nodes reconfigured in real time to serve as photon sources, gate units, stitching modules, supporting flexible architectures... each atomic excitation yields exactly 1 photon, eliminating need for multiplexing/ heralding... intermediary atom computational gatekeeper not just photon source... >99.6% fidelity, no need for direct photon interaction, enabling scaling... fast, built for modular deployment"

Quantum atom interferometer uses cloud of atoms chilled incredibly cold to simultaneously measure acceleration in each of 3 dimensions

https://www.eurekalert.org/news-releases/1087130 "6 thin lasers pin cloud of 10s of 1,000s rubidium atoms in place at few billionths degree above absolute zero forming Bose-Einstein Condensate, next, jiggle atoms using laser light so each atom superpositions so simultaneously in 2 places at once. each part following different path... when parts nap back together form unique pattern indicating acceleration experienced, based on multi-step laser adjustments guided by machine learning... precise navigation of vehicles such as cars, submarines, spacecraft"

Negative refraction achieved propagating light through atomic arrays, without need for artificially manufactured metamaterials

https://www.eurekalert.org/news-releases/1073130 "negative refraction: light in medium bends in opposite direction to what is typically observed in nature,potentially enabling perfect lens capable of focusing/ imaging beyond diffraction limit, or cloaking devices rendering objects invisible... overcomes metamaterial fabrication imperfections/ non-radiative losses... atoms interact collectively enabling negative refraction... trapping atoms in periodic optical lattices providing pristine, clean medium free from fabrication imperfections, without absorption losses" Related: Korea develops core radar components for stealth technology https://techxplore.com/news/2025-08-korea-core-radar-components-stealth.html Backyard insect inspires large-scale invisibility particles production https://phys.org/news/2025-12-backyard-insect-large-scale-invisibility.html

Atom loss detection in neutral atom systems using simple circuit-based techniques, without disturbing quantum state

https://www.eurekalert.org/news-releases/1068731 "if an atom slips away in the middle of a calculation the result can be completely useless... useful quantum computers will need millions of qubits, and with so many, the odds of losing them mid-program spikes... circuit-based detection method enabling researchers to flag and correct errors achieves 93.4% accuracy... .. second atom, not involved in any calculation, indirectly detects whether an atom of interest is missing" Related: How to improve the performance of qubits: super-fast fluctuation detection achieved https://www.eurekalert.org/news-releases/1116981