Thermalization of matter waves in speckle potentials
Disordered Systems and Neural Networks
2015-12-16 v1
Abstract
We show that the momentum distribution of a nonlinear matter wave suddenly released with a finite velocity in a speckle potential converges, after an out-of-equilibrium evolution, to a universal Rayleigh-Jeans thermal distribution. By exploring the complete phase diagram of the equilibrated wave, we discover that for low but nonzero values of the disorder strength, a large-scale structure -a condensate- appears in the equilibrium distribution.
Cite
@article{arxiv.1503.08648,
title = {Thermalization of matter waves in speckle potentials},
author = {Nicolas Cherroret and Tomasz Karpiuk and Benoît Grémaud and Christian Miniatura},
journal= {arXiv preprint arXiv:1503.08648},
year = {2015}
}
Comments
5 pages, 3 figures. Supplementary material added