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arXiv · 0707.4113

Mean-field description of ultracold Bosons on disordered two-dimensional optical lattices

P. Buonsante·Francesco Massel·Vittorio Penna·Alessandro Vezzani
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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.

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P. Buonsante, Francesco Massel, Vittorio Penna, Alessandro Vezzani. 2007-07-27. Mean-field description of ultracold Bosons on disordered two-dimensional optical lattices. https://doi.org/10.1088/0953-4075/40/17/f02

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