Dynamics of Bloch Oscillations in Disordered Lattice Potentials
Other Condensed Matter
2009-11-13 v1 Disordered Systems and Neural Networks
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.
Cite
@article{arxiv.0707.3131,
title = {Dynamics of Bloch Oscillations in Disordered Lattice Potentials},
author = {T. Schulte and S. Drenkelforth and G. Kleine Büning and W. Ertmer and J. Arlt and M. Lewenstein and L. Santos},
journal= {arXiv preprint arXiv:0707.3131},
year = {2009}
}