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Showing posts with the label solitons

Creating/ stabilizing bright matter-wave solitons—concentrated clusters of atoms that do not spread out—within repeating laser light lattice

https://phys.org/news/2026-01-breakthrough-laser-technique-quantum-stable.html "atoms wave-like at quantum level dispersing over time, overcome stabilizing (for nearly half second) solitons within lattice using attractive forces using cesium atoms cooled to near absolute zero (Bose-Einstein condensate)... magnetic fields tune attraction between atoms: too weak and atoms disperse, too strong and cluster collapses... 2 types of stable atoms' structure: concentrated at single point on grid/ distributed across multiple sites while still behaving as a unified soliton... quantum sensing/ transport"

Lump soliton: a stable, 3D wave packet of light that maintains its shape even after colliding with other waves

https://phys.org/news/2026-01-physicists-resilient-3d-solitons-lab.html "only observed in 1D before... waves distort/ lose information due to turbulence, overcome applying external voltage to strontium-barium niobate crystals, making solitons integrable in 3D space possessing conserved energy/ momentum keeping them stable, turned crystal's interior into photon fluid enabling light movement control through it, generating light beam matching mathematical lump... wave packet did not spread out/ distort as traveled, 2 lump solitons colliding through each other left properties/ shapes intact"

Continuous, tunable control over transitions between quasiparticle-like topological states, for quantum computing, high-capacity optical networks

https://www.eurekalert.org/news-releases/1100921 "Poincaré sphere geometrics created/ manipulated nano-scale topological entities in soliton (skyrmion/ antiskyrmion, vortex) ferroelectric ultrathin films by tailoring laser's twist/ phase structure... laser beams ranging from Laguerre-Gaussian to Hermite-Gaussian modes imprint rich patterns onto ferroelectric films' polarization landscape... handedness control within trillionths of second... ultrafast, robust, smooth, entirely optical, unlike previous methods that often required complex electrical or mechanical manipulation"