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arXiv · 0807.3627

Tunneling-induced damping of phase coherence revivals in deep optical lattices

Uwe R. Fischer·Ralf Schützhold
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Abstract

We consider phase coherence collapse and revival in deep optical lattices, and calculate within the Bose-Hubbard model the revival amplitude damping incurred by a finite tunneling coupling of the lattice wells (after sweeping from the superfluid to the Mott phase). Deriving scaling laws for the corresponding decay of first-order coherence revival in terms of filling factor, final lattice depth, and number of tunneling coupling partners, we estimate whether revival-damping related to tunneling between sites can be or even has already been observed in experiment.

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Uwe R. Fischer, Ralf Schützhold. 2008-12-10. Tunneling-induced damping of phase coherence revivals in deep optical lattices. https://doi.org/10.1103/physreva.78.061603

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