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Bloch oscillations of Bose-Einstein condensates: Breakdown and revival

D. Witthaut·M. Werder·S. Mossmann·H. J. Korsch
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Abstract

We investigate the dynamics of Bose-Einstein condensates (BEC) in a tilted one-dimensional periodic lattice within the mean-field (Gross-Pitaevskii) description. Unlike in the linear case the Bloch oscillations decay because of nonlinear dephasing. Pronounced revival phenomena are observed. These are analyzed in detail in terms of a simple integrable model constructed by an expansion in Wannier-Stark resonance states. We also briefly discuss the pulsed output of such systems for stronger static fields.

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D. Witthaut, M. Werder, S. Mossmann, H. J. Korsch. 2004-10-11. Bloch oscillations of Bose-Einstein condensates: Breakdown and revival. https://doi.org/10.1103/physreve.71.036625

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