Mean-field description of ultracold Bosons on disordered two-dimensional optical lattices
Disordered Systems and Neural Networks
2009-11-13 v1 Mesoscale and Nanoscale Physics
Abstract
In the present paper we describe the properties induced by disorder on an ultracold gas of Bosonic atoms loaded into a two-dimensional optical lattice with global confinement ensured by a parabolic potential. Our analysis is centered on the spatial distribution of the various phases, focusing particularly on the superfluid properties of the system as a function of external parameters and disorder amplitude. In particular, it is shown how disorder can suppress superfluidity, while partially preserving the system coherence.
Keywords
Cite
@article{arxiv.0707.4113,
title = {Mean-field description of ultracold Bosons on disordered two-dimensional optical lattices},
author = {P. Buonsante and Francesco Massel and Vittorio Penna and Alessandro Vezzani},
journal= {arXiv preprint arXiv:0707.4113},
year = {2009}
}
Comments
Accepted for publication on JPB-FTC