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“Slow” wave of zero-sound in degenerate Fermi gas

  • Research Article
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Central European Journal of Physics

Abstract

The dynamic Hartree-Fock theory with point-like interaction is used to calculate the speed of sound and damping factor of a zero-sound wave propagating in a degenerate Fermi gas. This wave propagates slower than Fermi velocity. It is shown, that if the interaction is weak and density is small, then the damping of such a wave can be small. A possibility of discovering such waves in ultracold Fermi gases is discussed.

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Authors and Affiliations

  1. Akhiezer Institute for Theoretical Physics, NSC “Kharkov Institute of Physics and Technology”, 1, Akademicheskaya Str., Kharkov UA, 61108, Ukraine

    Yuri Poluektov & Volodymyr Savchenko

Authors
  1. Yuri Poluektov
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  2. Volodymyr Savchenko
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Correspondence to Volodymyr Savchenko.

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Cite this article

Poluektov, Y., Savchenko, V. “Slow” wave of zero-sound in degenerate Fermi gas. centr.eur.j.phys. 12, 660–665 (2014). https://doi.org/10.2478/s11534-014-0491-6

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  • DOI: https://doi.org/10.2478/s11534-014-0491-6

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