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arXiv:cond-mat/0302092 · Physical Review Letters

New Bloch Period for Interacting Cold Atoms in 1D Optical Lattices

Andrey R. Kolovsky

Published May 29, 2003• 40 citations
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Abstract

This paper studies Bloch oscillations of ultracold atoms in an optical lattice, in the presence of atom-atom interactions. A new, interaction-induced Bloch period is identified. Analytical results are corroborated by realistic numerical calculations.
DOI
10.1103/physrevlett.90.213002

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This work is devoted to Bloch oscillations (BO) of cold neutral atoms in optical lattices. After a general introduction to the phenomenon of BO and its realization in optical lattices, we study different extentions of this problem, which account for recent developments in this field. These are two-dimensional BO, decoherence of BO, and BO in correlated systems. Although these problems are discussed in relation to the system of cold atoms in optical lattices, many of the results are of general validity and can be well applied to other systems showing the phenomenon of BO.
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