Disorder effects on the quantum coherence of a many-boson system

Details Disorder effects on the quantum coherence of a many-boson system Disorder effects on the quantum coherence of a many-boson system

2012-01-16

arxiv.org/abs/1201.3144v1

Phys.Rev.A 85,033617(2012)

Physics

Condensed Matter

Quantum Gases

4 figures

Scientific paper

The effects of disorders on the quantum coherence for many-bosons are studied in a double well model. For the ground state, the disorder enhances the quantum coherence. In the deep Mott regime, dynamical evolution reveals periodical collapses and revivals of the quantum coherence which is robust against the disorder. The average over variations in both the on-site energy and the interaction reveals a beat phenomenon of the coherence-decoherence oscillation in the temporal evolution.

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