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New bloch period for interacting cold atoms in 1D optical lattices |
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| Authors: | Kolovsky Andrey R |
| Affiliation: | Max-Planck-Institut für Physik Komplexer Systeme, D-01187 Dresden, Germany. |
| 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. |
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