Nonadiabatic dynamics of a Bose-Einstein condensate in an optical lattice

Isella, Lorenzo and Ruostekoski, Janne (2005) Nonadiabatic dynamics of a Bose-Einstein condensate in an optical lattice. Physical review a, 72 (1). ISSN 1050-2947

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Abstract

We study the nonequilibrium dynamics of a Bose-Einstein condensate that is split in a harmonic trap by turning up a periodic optical lattice potential. We evaluate the dynamical evolution of the phase coherence along the lattice and the number fluctuations in individual lattice sites within the stochastic truncated Wigner approximation when several atoms occupy each site. We show that the saturation of the number squeezing at high lattice strengths, which was observed in recent experiments by Orzel et al. [Science 291, 2386 (2001)] can be explained by the nonadiabaticity of the splitting.

Item Type: Journal Article
Journal or Publication Title: Physical review a
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3107
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 123693
Deposited By: ep_importer_pure
Deposited On: 26 Feb 2018 10:18
Refereed?: Yes
Published?: Published
Last Modified: 11 Feb 2020 03:58
URI: https://eprints.lancs.ac.uk/id/eprint/123693

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