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Expansion of matter waves in static and driven periodic potentials

Creffield, C. E. and Sols, F. and Ciampini, D. and Morsch, O. and Arimondo, E. (2010) Expansion of matter waves in static and driven periodic potentials. Physical review. A, Atomic, Molecular, and Optical Physics, 82 . 035601. ISSN 1094-1622

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We study the non-equilibrium dynamics of cold atoms held in an optical lattice potential. The expansion of an initially confined atom cloud occurs in two phases: an initial quadratic expansion followed by a ballistic behaviour at long times. Accounting for this gives a good description of recent experimental results, and provides a robust method to extract the effective intersite tunneling from time-of-flight measurements.

Item Type: Article
Additional Information: Imported from arXiv
Subjects: Area02 - Scienze fisiche > FIS/03 - Fisica della materia
Divisions: Dipartimenti (until 2012) > DIPARTIMENTO DI FISICA " E. FERMI"
Depositing User: dott.ssa Sandra Faita
Date Deposited: 07 Apr 2015 17:42
Last Modified: 07 Apr 2015 17:42
URI: http://eprints.adm.unipi.it/id/eprint/1372

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