Results 31 to 40 of about 142,410 (240)

Universality of an impurity in a Bose-Einstein condensate [PDF]

open access: yes, 2017
Universality is a powerful concept in physics, allowing one to construct physical descriptions of systems that are independent of the precise microscopic details or energy scales.
Shuhei M. Yoshida   +3 more
semanticscholar   +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

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

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

Strong-coupling Bose polarons in a Bose-Einstein condensate [PDF]

open access: yes, 2017
We use a non-perturbative renormalization group approach to develop a unified picture of the Bose polaron problem, where a mobile impurity is strongly interacting with a surrounding Bose-Einstein condensate (BEC).
F. Grusdt   +3 more
semanticscholar   +1 more source

Bell correlations in a Bose-Einstein condensate [PDF]

open access: yesScience, 2016
Correlating an atomic condensate Parts of a quantum system can be more “correlated” than what is allowed in the everyday classical world: A measurement on one part of the system can immediately affect a spatially distant component.
R. Schmied   +6 more
semanticscholar   +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

Impurity in a Bose-Einstein Condensate and the Efimov Effect. [PDF]

open access: yesPhysical Review Letters, 2015
We investigate the zero-temperature properties of an impurity particle interacting with a Bose-Einstein condensate (BEC), using a variational wave function that includes up to two Bogoliubov excitations of the BEC.
J. Levinsen, M. Parish, G. Bruun
semanticscholar   +1 more source

Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases

open access: yesCondensed Matter Physics, 2015
We have studied conditions of photon Bose-Einstein condensate formation that is in thermodynamic equilibrium with ideal gas of two-level Bose atoms below the degeneracy temperature.
N. Boichenko , Yu. Slyusarenko
doaj   +1 more source

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