Tomadin, Andrea and Mannella, Riccardo and Wimberger, Sandro (2008) Many-body Landau-Zener tunneling in the Bose-Hubbard model. Physical review. A, Atomic, Molecular, and Optical Physics, 77 . 013606. ISSN 1094-1622
Full text not available from this repository.Abstract
SUMMARY We study a model for ultracold, spinless atoms in quasi-one dimensional optical lattices and subjected to a tunable tilting force. Statistical tests are employed to quantitatively characterize the spectrum of the Floquet-Bloch operator of the system along the transition from the regular to the quantum chaotic regime. Moreover, we perturbatively include the coupling of the one-band model to the second energy band. This allows us to study the Landau-Zener interband tunneling within a truly many-body description of ultracold atoms. The distributions of the computed tunneling rates provide an independent and experimentally accessible signature of the regular-chaotic transition.
| Item Type: | Article |
|---|---|
| Additional Information: | Imported from arXiv |
| Subjects: | Area02 - Scienze fisiche > FIS/03 - Fisica della materia |
| Divisions: | Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA |
| Depositing User: | dott.ssa Sandra Faita |
| Date Deposited: | 30 Jul 2013 11:01 |
| Last Modified: | 30 Jul 2013 11:01 |
| URI: | http://eprints.adm.unipi.it/id/eprint/1303 |
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