Bath mediated decay of density waves in a disordered Bose lattice gas

Sridhar Prabhu; Erich J. Mueller

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arXiv · 2104.12648

Bath mediated decay of density waves in a disordered Bose lattice gas

Sridhar Prabhu·Erich J. Mueller

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Abstract

Motivated by a recent experiment, we study the dynamics of bosons in a disordered optical lattice, interacting with a variably sized bath of disorder free atoms. As the number of particles in the bath is increased, there is a transition between "localized" and "ergodic" behavior, which are characterized by the long-time behavior of an initial density wave. We model the dynamics with a stochastic mean field theory, reproducing the central observations of the experiment. A key conclusion from our study is that particle loss plays an important role.

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Sridhar Prabhu, Erich J. Mueller. 2021-04-26. Bath mediated decay of density waves in a disordered Bose lattice gas. https://arxiv.org/abs/2104.12648

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