Two-stream instability in quasi-one-dimensional Bose-Einstein condensates

Tercas, H. and Mendonca, J.T. and Robb, G.R.M., Fundacao para a Ciencia e Tecnologia (FCT-Portugal) (Funder), Leverhulme Trust via research (Funder) (2009) Two-stream instability in quasi-one-dimensional Bose-Einstein condensates. Physical Review A, 79 (6). 065601. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.79.065601)

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Abstract

We apply a kinetic model to predict the existence of an instability mechanism in elongated Bose-Einstein condensates. Our kinetic description, based on the Wigner formalism, is employed to highlight the existence of unstable Bogoliubov waves that may be excited in the counterpropagation configuration. We identify a dimensionless parameter, the Mach number at T=0, that tunes different regimes of stability. We also estimate the magnitude of the main parameters at which two-stream instability is expected to be observed under typical experimental conditions.

ORCID iDs

Tercas, H., Mendonca, J.T. and Robb, G.R.M. ORCID logoORCID: https://orcid.org/0000-0002-3004-5926;
  • Item type:Article
    ID code:19054
    Dates:
    Date
    Event
    2 June 2009
    Published
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Strathprints Administrator
    Date deposited:07 Jun 2010 10:13
    Last modified:11 Nov 2024 09:26
    URI:https://strathprints.strath.ac.uk/id/eprint/19054
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