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.
Autori interni: | ||
Autori: | Tomadin Andrea; Mannella R; Wimberger Sandro | |
Titolo: | Many-body interband tunneling as a witness of complex dynamics in the Bose-Hubbard model | |
Anno del prodotto: | 2007 | |
Digital Object Identifier (DOI): | 10.1103/PhysRevLett.98.130402 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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