Many-body interband tunneling as a witness for complex dynamics in the Bose-Hubbard model

Details Many-body interband tunneling as a witness for complex dynamics in the Bose-Hubbard model Many-body interband tunneling as a witness for complex dynamics in the Bose-Hubbard model

2007-04-02

arxiv.org/abs/0704.0233v1

Phys. Rev. Lett. 98, 130402 (2007)

Physics

Condensed Matter

Other Condensed Matter

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.98.130402

A perturbative model is studied for the tunneling of many-particle states from the ground band to the first excited energy band, mimicking Landau-Zener decay for ultracold, spinless atoms in quasi-one dimensional optical lattices subjected to a tunable tilting force. The distributions of the computed tunneling rates provide an independent and experimentally accessible signature of the regular-chaotic transition in the strongly correlated many-body dynamics of the ground band.

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