On Berezinskii-Kosterlitz-Thouless Phase Transition in Quasi-One Dimensional Bose-Einstein Condensate
Quantum Gases
2011-07-28 v2
Abstract
We show that quasi-one dimensional Bose-Einstein condensate under suitable conditions can exhibit a Berezinskii-Kosterlitz-Thouless phase transition. The role played by quantized vortices in two dimensional case, is played in this case by dark solitons. We find that the critical temperature for this transition lies in nano Kelvin range and below, for a wide range of experimentally accessible parameters. It is seen that the high temperature (disordered) phase differs from low temperature (ordered) phase in terms of phase coherence, which can be used as an experimental signature for observing this transition.
Keywords
Cite
@article{arxiv.1106.0402,
title = {On Berezinskii-Kosterlitz-Thouless Phase Transition in Quasi-One Dimensional Bose-Einstein Condensate},
author = {Vivek M. Vyas and Sandeep Gautam and Prasanta K. Panigrahi},
journal= {arXiv preprint arXiv:1106.0402},
year = {2011}
}
Comments
Minor changes, few references added. REVTEX 4, 10 pages, 1 figure