Results 1 to 10 of about 36,425 (173)

Evidence for spin current driven Bose-Einstein condensation of magnons [PDF]

open access: yesNature Communications, 2021
A gas of magnons, quantised magnetic excitations, can be driven into a Bose-Einstein condensation (BEC) state even at room temperature. Here, Divinskiy et al show that it is possible to achieve stationary equilibrium room-temperature magnon BEC via a ...
B. Divinskiy   +11 more
doaj   +4 more sources

Room temperature exciton–polariton Bose–Einstein condensation in organic single-crystal microribbon cavities [PDF]

open access: yesNature Communications, 2021
The use of room temperature exciton–polariton Bose–Einstein condensation is limited by the need for external high-finesse microcavities. The authors generate room temperature EPs with single-crystal microribbons as waveguide Fabry–Pérot microcavities ...
Ji Tang   +8 more
doaj   +3 more sources

Tuning moiré excitons in Janus heterobilayers for high-temperature Bose-Einstein condensation. [PDF]

open access: yesSci Adv, 2022
Using first-principles calculations, we predict that moiré excitons in twisted Janus heterobilayers could realize tunable and high-temperature Bose-Einstein condensation (BEC).
Guo H, Zhang X, Lu G.
europepmc   +2 more sources

Continuous Bose-Einstein condensation. [PDF]

open access: yesNature, 2022
Bose–Einstein condensates (BECs) are macroscopic coherent matter waves that have revolutionized quantum science and atomic physics. They are important to quantum simulation1 and sensing2,3, for example, underlying atom interferometers in space4 and ...
Chen CC   +5 more
europepmc   +3 more sources

Exact analysis and elastic interaction of multi-soliton for a two-dimensional Gross-Pitaevskii equation in the Bose-Einstein condensation [PDF]

open access: yesJournal of Advanced Research, 2022
Introduction: The Gross-Pitaevskii equation is a class of the nonlinear Schrödinger equation, whose exact solution, especially soliton solution, is proposed for understanding and studying Bose-Einstein condensate and some nonlinear phenomena occurring in
Haotian Wang, Qin Zhou, Wenjun Liu
doaj   +2 more sources

Machine-learning-accelerated Bose-Einstein condensation [PDF]

open access: yesPhysical Review Research, 2022
Machine learning is emerging as a technology that can enhance physics experiment execution and data analysis. Here, we apply machine learning to accelerate the production of a Bose-Einstein condensate (BEC) of ^{87}Rb atoms by Bayesian optimization of up
Zachary Vendeiro   +7 more
doaj   +2 more sources

Bose-Einstein Condensation Beyond the Gross-Pitaevskii Regime. [PDF]

open access: yesAnn Henri Poincare, 2021
We consider N bosons in a box with volume one, interacting through a two-body potential with scattering length of the order N-1+κ\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb ...
Adhikari A, Brennecke C, Schlein B.
europepmc   +3 more sources

Gravitational Bose-Einstein Condensation in the Kinetic Regime [PDF]

open access: yesPhysical Review Letters, 2018
We study Bose-Einstein condensation and the formation of Bose stars in virialized dark matter halos and miniclusters by universal gravitational interactions. We prove that this phenomenon does occur and it is described by a kinetic equation.
Igor Ivanovich Tkachev, Dmitry G. Levkov
exaly   +2 more sources

Space-borne Bose–Einstein condensation for precision interferometry [PDF]

open access: yesNature, 2018
Owing to the low-gravity conditions in space, space-borne laboratories enable experiments with extended free-fall times. Because Bose–Einstein condensates have an extremely low expansion energy, space-borne atom interferometers based on Bose–Einstein ...
Achim Peters   +2 more
exaly   +2 more sources

Bose-Einstein condensation of non-ground-state caesium atoms [PDF]

open access: yesNature Communications
Bose-Einstein condensates of ultracold atoms serve as low-entropy sources for a multitude of quantum-science applications, ranging from quantum simulation and quantum many-body physics to proof-of-principle experiments in quantum metrology and quantum ...
Milena Horvath   +7 more
doaj   +2 more sources

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