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arXiv · 0707.3131

Dynamics of Bloch Oscillations in Disordered Lattice Potentials

T. Schulte·S. Drenkelforth·G. Kleine Büning·W. Ertmer·J. Arlt·M. Lewenstein·L. Santos
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Abstract

We present a detailed analysis of the dynamics of Bloch oscillations of Bose-Einstein condensates in disordered lattice potentials. Due to the disorder and the interparticle interactions these oscillations undergo a dephasing, reflected in a damping of the center of mass oscillations, which should be observable under realistic experimental conditions. The interplay between interactions and disorder is far from trivial, ranging from an interaction-enhanced damping due to modulational instability for strong interactions, to an interaction-reduced damping due to a dynamical screening of the disorder potential.

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T. Schulte, S. Drenkelforth, G. Kleine Büning, W. Ertmer, J. Arlt, M. Lewenstein, L. Santos. 2007-07-20. Dynamics of Bloch Oscillations in Disordered Lattice Potentials. https://doi.org/10.1103/physreva.77.023610

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