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

D. R. Murray, Stephen M. Barnett, Patrik Ohberg, Damià Gomila

Research output: Contribution to journalArticle

4 Citations (Scopus)

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. 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. © 2007 The American Physical Society.

Original languageEnglish
Article number053626
JournalPhysical Review A
Volume76
Issue number5
DOIs
Publication statusPublished - 29 Nov 2007

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