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 metadata

  Item type:	Article
  ID code:	6173
  Dates:	Date Event 29 November 2007 Published
  Subjects:	Science > Physics > Optics. Light
  Department:	Faculty of Science > Physics
  Depositing user:	Miss Darcy Spiller
  Date deposited:	22 May 2008
  Last modified:	11 Nov 2024 08:52
  Related URLs:	Related item
  URI:	https://strathprints.strath.ac.uk/id/eprint/6173