Superfluid behavior of a Bose-Einstein condensate in a random potential
Quantum Gases
2015-06-22 v1 Mathematical Physics
math.MP
Abstract
We investigate the relation between Bose-Einstein condensation (BEC) and superfluidity in the ground state of a one-dimensional model of interacting Bosons in a strong random potential. We prove rigorously that in a certain parameter regime the superfluid fraction can be arbitrarily small while complete BEC prevails. In another regime there is both complete BEC and complete superfluidity, despite the strong disorder.
Cite
@article{arxiv.1407.3568,
title = {Superfluid behavior of a Bose-Einstein condensate in a random potential},
author = {M. Könenberg and T. Moser and R. Seiringer and J. Yngvason},
journal= {arXiv preprint arXiv:1407.3568},
year = {2015}
}