Competition between Bose Einstein Condensation and spin dynamics
Quantum Gases
2016-11-02 v1
Abstract
We study the impact of spin-exchange collisions on the dynamics of Bose-Einstein condensation, by rapidly cooling a chromium multi-component Bose gas. Despite relatively strong spin-dependent interactions, the critical temperature for Bose-Einstein condensation is reached before the spin-degrees of freedom fully thermalize. The increase in density due to Bose-Einstein condensation then triggers spin dynamics, hampering the formation of condensates in spin excited states. Small metastable spinor condensates are nevertheless produced, and manifest strong spin fluctuations.
Cite
@article{arxiv.1607.02406,
title = {Competition between Bose Einstein Condensation and spin dynamics},
author = {Bruno Naylor and Miroslaw Brewczyk and Mariusz Gajda and Olivier Gorceix and Etienne Marechal and Laurent Vernac and Bruno Laburthe-Tolra},
journal= {arXiv preprint arXiv:1607.02406},
year = {2016}
}
Comments
5 pages, 4 figures