Anderson localization of a Tonks-Girardeau gas in potentials with controlled disorder

Details Anderson localization of a Tonks-Girardeau gas in potentials with controlled disorder Anderson localization of a Tonks-Girardeau gas in potentials with controlled disorder

2010-05-26

arxiv.org/abs/1005.4726v1

Physics

Condensed Matter

Quantum Gases

Scientific paper

We theoretically demonstrate features of Anderson localization in the Tonks-Girardeau gas confined in one-dimensional (1D) potentials with controlled disorder. That is, we investigate the evolution of the single particle density and correlations of a Tonks-Girardeau wave packet in such disordered potentials. The wave packet is initially trapped, the trap is suddenly turned off, and after some time the system evolves into a localized steady state due to Anderson localization. The density tails of the steady state decay exponentially, while the coherence in these tails increases. The latter phenomenon corresponds to the same effect found in incoherent optical solitons.

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