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. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.76.053626)
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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.
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Item type: Article ID code: 6173 Dates: DateEvent29 November 2007PublishedSubjects: Science > Physics > Optics. Light Department: Faculty of Science > Physics Depositing user: Miss Darcy Spiller Date deposited: 22 May 2008 Last modified: 13 Sep 2024 00:26 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/6173