Results 21 to 30 of about 5,364 (225)
Physics Letters B, 2023 Recent experimental efforts were made to explore the Bose-Einstein condensation in multi-α system using the heavy-ion collisions. This Letter provides an explanation why no signatures were observed and a guidance for future experiments. More precisely, a
Jun Su, Long Zhu
doaj +1 more source
Avalanches in a Bose-Einstein Condensate [PDF]
Physical Review Letters, 2001 4 pages, 2 figures, 1 ...
Schuster, J. +5 more
openaire +4 more sources
New Journal of Physics, 2021 The reduced density matrix functional theory (RDMFT) is a remarkable tool for studying properties of ground states of strongly interacting quantum many body systems.
Tomasz Maciążek
doaj +1 more source
Stirring a Bose Einstein condensate [PDF]
Journal of Physics B: Atomic, Molecular and Optical Physics, 2002 By shining a tightly focused laser light on the condensate and moving the center of the beam along the spiral line one may stir the condensate and create vortices. It is shown that one can induce rotation of the condensate in the direction opposite to the direction of the stirring.
Damski, Bogdan +2 more
openaire +3 more sources
Machine-learning-accelerated Bose-Einstein condensation
Physical 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 +1 more source
Fluctuations of the Bose–Einstein condensate [PDF]
Journal of Physics A: Mathematical and Theoretical, 2014 This article gives a rigorous analysis of the fluctuations of the Bose-Einstein condensate for a system of non-interacting bosons in an arbitrary potential, assuming that the system is governed by the canonical ensemble. As a result of the analysis, we are able to tell the order of fluctuations of the condensate fraction as well as its limiting ...
Chatterjee, Sourav, Diaconis, Persi
openaire +2 more sources
Waveguide for Bose-Einstein condensates [PDF]
Physical Review A, 2001 We report on the creation of Bose-Einstein condensates of 87Rb in a specially designed hybrid, optical dipole and magnetic trap. This trap naturally allows the coherent transfer of matter waves into a pure optical dipole potential waveguide based on a doughnut beam.
Bongs, K. +6 more
openaire +2 more sources
Bose-Einstein Condensation and Quasicrystals [PDF]
Armenian Journal of Physics, 2021 We consider interacting Bose particles in an external local potential. It is shown that large class of external quasicrystal potentials cannot sustain any type of Bose-Einstein condensates. Accordingly, at spatial dimensions D ≤ 2 in such quasicrystal potentials a supersolid is not possible via Bose-Einstein condensates at finite temperatures.
Alexanian, Moorad, Mkrtchian, Vanik E.
openaire +2 more sources
Coherence and Optical Emission from Bilayer Exciton Condensates
Advances in Condensed Matter Physics, 2011 Experiments aimed at demonstrating Bose-Einstein condensation of excitons in two types of experiments with bilayer structures (coupled quantum wells) are reviewed, with an emphasis on the basic effects. Bose-Einstein condensation implies the existence of
D. W. Snoke
doaj +1 more source
Color confinement and Bose-Einstein condensation
Journal of High Energy Physics, 2021 We propose a unified description of two important phenomena: color confinement in large-N gauge theory, and Bose-Einstein condensation (BEC). We focus on the confinement/deconfinement transition characterized by the increase of the entropy from N 0 to N ...
Masanori Hanada +2 more
doaj +1 more source