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Elementary excitations of a Bose-Einstein condensate in an effective magnetic field

Murray, D.R. and Barnett, Stephen M. and Ohberg, P. and Gomila, Damià (2007) Elementary excitations of a Bose-Einstein condensate in an effective magnetic field. Physical Review A, 76 (5). 053626-1. ISSN 1050-2947

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Abstract

We calculate the low-energy elementary excitations of a Bose-Einstein condensate in an effective magnetic field. The field is created by the interplay between light beams carrying orbital angular momentum and the trapped atoms [G. Juzelinas et al., Phys. Rev. A 71, 053614 (2005)]. We examine the role of the homogeneous magnetic field, familiar from studies of rotating condensates, and also investigate spectra for vector potentials with a more general radial dependence. We discuss the instabilities which arise and how these may be manifested.

Item type: Article
ID code: 6173
Keywords: magnetic field, Bose-Einstein, light beams, light, optics, physics, Optics. Light, Atomic and Molecular Physics, and Optics
Subjects: Science > Physics > Optics. Light
Department: Faculty of Science > Physics
Depositing user: Miss Darcy Spiller
Date Deposited: 22 May 2008
Last modified: 24 Jul 2015 10:11
Related URLs:
URI: http://strathprints.strath.ac.uk/id/eprint/6173

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