UnipiEprints
Università di Pisa
Sistema bibliotecario di ateneo

Bloch oscillations and mean-field effects of Bose-Einstein condensates in 1-D optical lattices

Morsch, O. and Müller, J. H. and Cristiani, M. and Ciampini, D. and Arimondo, E. Bloch oscillations and mean-field effects of Bose-Einstein condensates in 1-D optical lattices. Physical review letters (140402). ISSN 0031-9007

Full text not available from this repository.

Abstract

We have loaded Bose-Einstein condensates into one-dimensional, off-resonant optical lattices and accelerated them by chirping the frequency difference between the two lattice beams. For small values of the lattice well-depth, Bloch oscillations were observed. Reducing the potential depth further, Landau-Zener tunneling out of the lowest lattice band, leading to a breakdown of the oscillations, was also studied and used as a probe for the effective potential resulting from mean-field interactions as predicted by Choi and Niu [Phys. Rev. Lett. {\bf 82}, 2022 (1999)]. The effective potential was measured for various condensate densities and trap geometries, yielding good qualitative agreement with theoretical calculations.

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 17:40
Last Modified: 07 Apr 2015 17:40
URI: http://eprints.adm.unipi.it/id/eprint/1348

Repository staff only actions

View Item