Results 11 to 20 of about 38,361 (127)

A Dicke Type Model for Equilibrium BEC Superradiance [PDF]

open access: yes, 2004
We study the effect of electromagnetic radiation on the condensate of a Bose gas. In an earlier paper we considered the problem for two simple models showing the cooperative effect between Bose-Einstein condensation and superradiance.
Andreev A V   +10 more
core   +5 more sources

Interaction of a Bose–Einstein condensate and a superconductor via eddy currents

open access: yesNew Journal of Physics, 2013
We study center-of-mass oscillations of a dipolar Bose–Einstein condensate in the vicinity of a superconducting surface. We show that the magnetic field of the magnetic dipoles induces eddy currents in the superconductor, which act back on the Bose ...
Igor Sapina, Thomas Dahm
doaj   +1 more source

How creating one additional well can generate Bose-Einstein condensation

open access: yesCommunications Physics, 2021
Bose-Einstein condensation was theoretically predicted almost 150 years ago but experimentally realized this century, reviving the interest in this striking quantum phenomenon.
Mihály Máté   +4 more
doaj   +1 more source

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

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   +1 more source

Thin accretion disks around cold Bose-Einstein Condensate stars [PDF]

open access: yes, 2015
Due to their superfluid properties some compact astrophysical objects, like neutron or quark stars, may contain a significant part of their matter in the form of a Bose-Einstein Condensate.
Dănilă, Bogdan   +2 more
core   +2 more sources

Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature

open access: yesNature Communications, 2022
Engineered spin-orbit coupling can induce novel quantum phases in a Bose-Einstein condensate, however such demonstrations have been limited to cold atom systems. Here the authors realize a exciton-polarion condensate with tunable spin-orbit coupling in a
Yao Li   +6 more
doaj   +1 more source

Observation of Bose-Einstein condensates of excitons in a bulk semiconductor

open access: yesNature Communications, 2022
Bose-Einstein condensate of excitons is expected in photo-excited bulk semiconductors, but a direct experimental evidence has been lacking. Here the authors report the observation of a condensate of 1s paraexcitons in Cu2O using real-space mid-infrared ...
Yusuke Morita   +2 more
doaj   +1 more source

Chemical potential of quasi-equilibrium magnon gas driven by pure spin current

open access: yesNature Communications, 2017
Spin current-induced quasi-equilibrium state of magnon gas described by the Bose–Einstein statistics has been previously theoretically predicted.
V. E. Demidov   +6 more
doaj   +1 more source

Slowly rotating Bose Einstein condensate galactic dark matter halos, and their rotation curves

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
If dark matter is composed of massive bosons, a Bose–Einstein condensation process must have occurred during the cosmological evolution. Therefore galactic dark matter may be in a form of a condensate, characterized by a strong self-interaction.
Xiaoyue Zhang   +4 more
doaj   +1 more source

Asymmetric solitary vortex evolution in two-dimensional Bose-Einstein condensate in harmonic trap

open access: yesResults in Physics, 2019
We studied the evolution of an asymmetric solitary vortex in a two-dimensional Bose-Einstein condensate starting from a quasi-one dimensional state with external harmonic trapping potential modulation. We derived the analytical solution of the asymmetric
Ying Wang   +4 more
doaj   +1 more source

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