Splitting and merging an elongated Bose-Einstein condensate at finite temperature

Phase coherence length of an elongated Bose-Einstein condensate

Dipolar Bose-Einstein condensates at finite temperature

We study a Bose-Einstein condensate of a dilute gas with dipolar interactions, at finite temperature, using the Hartree-Fock-Bogoliubov theory within the Popov approximation. An additional approximation involving the dipolar exchange interaction is made to facilitate the computation. We calculate the temperature dependence of the condensate fraction of a condensate confined in a cylindrically s...

Dynamics of Vortex Formation in Merging Bose-Einstein Condensate Fragments

R. Carretero-González, B. P. Anderson, P. G. Kevrekidis, D. J. Frantzeskakis, and C. N. Weiler Nonlinear Dynamical Systems Group,*Department of Mathematics and Statistics, and Computational Science Research Center, San Diego State University, San Diego, California 92182-7720, USA College of Optical Sciences, University of Arizona, Tucson, Arizona 85721, USA Department of Mathematics and Statist...

Solitons for nearly integrable bright spinor Bose-Einstein condensate

‎Using the explicit forms of eigenstates for linearized operator related to a matrix version of Nonlinear Schrödinger equation‎, ‎soliton perturbation theory is developed for the $F=1$ bright spinor Bose-Einstein condensates‎. ‎A small disturbance of the integrability condition can be considered as a small correction to the integrable equation‎. ‎By choosing appropriate perturbation‎, ‎the soli...

Finite-temperature Dicke phase transition of a Bose-Einstein condensate in an optical cavity

Yuanwei Zhang,1,2,* Jinling Lian,1,2,† J.-Q. Liang,1 Gang Chen,2,‡ Chuanwei Zhang,3 and Suotang Jia2 1Institute of Theoretical Physics, Shanxi University, Taiyuan 030006, People’s Republic of China 2State Key Laboratory of Quantum Optics and Quantum Optics Devices, Laser Spectroscopy Laboratory, Shanxi University, Taiyuan 030006, People’s Republic of China 3Department of Physics and Astronomy, ...