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On the instability of a homogeneous state of a weakly interacting Bose gas under external cooling

  • Condensed Matter
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Abstract

The behavior of a weakly interacting Bose gas with a finite particle lifetime has been studied in the framework of hydrodynamic equations under the conditions of a constant mass and energy inflow in the presence of external cooling. A spatially homogeneous state of such a gas is shown to be unstable with respect to the formation of an inhomogeneous density structure. A possible connection of the present results with experiments [3, 4] is discussed.

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Authors and Affiliations

  1. Landau Institute for Theoretical Physics, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 119991, Russia

    R. B. Saptsov

  2. Institut für Festkörperforschung, FZ-Jülich, Germany

    R. B. Saptsov

Authors
  1. R. B. Saptsov
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Correspondence to R. B. Saptsov.

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Original Russian Text © R.B. Saptsov, 2007, published in Pis’ma v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2007, Vol. 86, No. 10, pp. 779–784.

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Saptsov, R.B. On the instability of a homogeneous state of a weakly interacting Bose gas under external cooling. Jetp Lett. 86, 687–691 (2008). https://doi.org/10.1134/S0021364007220158

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  • DOI: https://doi.org/10.1134/S0021364007220158

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