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Unearthing wave-function renormalization effects in the time evolution of a Bose-Einstein condensate

Facchi, Paolo and Pascazio, Saverio and Pepe, Francesco V. and Arimondo, Ennio and Ciampini, Donatella and Morsch, Oliver (2013) Unearthing wave-function renormalization effects in the time evolution of a Bose-Einstein condensate. Physica Scripta, T153 . 014024. ISSN 1402-4896

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Abstract

We study the time evolution of a Bose-Einstein condensate in an accelerated optical lattice. When the condensate has a narrow quasimomentum distribution and the optical lattice is shallow, the survival probability in the ground band exhibits a steplike structure. In this regime we establish a connection between the wave-function renormalization parameter $Z$ and the phenomenon of resonantly enhanced tunneling.

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: 07 Apr 2015 17:45
Last Modified: 07 Apr 2015 17:45
URI: http://eprints.adm.unipi.it/id/eprint/1389

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