Phonon spectrum and dynamical stability of a dilute quantum degenerate Bose-Fermi mixture

Han Pu, Weiping Zhang, Martin Wilkens, Pierre Meystre

Research output: Contribution to journalArticle

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Abstract

The phonon excitation spectrum in a dilute boson-fermion gaseous mixture was calculated. The dynamical stability regime of a homogeneous mixture was determined. The change in sound velocity due to the boson-fermion interaction was investigated. A resonant phonon-exchange interaction between the fermions was found to be the physical mechanism resulting in the instability.

Original languageEnglish (US)
Pages (from-to)704081-704084
Number of pages4
JournalPhysical Review Letters
Volume88
Issue number7
StatePublished - Feb 18 2002

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fermions
bosons
acoustic velocity
interactions
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Phonon spectrum and dynamical stability of a dilute quantum degenerate Bose-Fermi mixture. / Pu, Han; Zhang, Weiping; Wilkens, Martin; Meystre, Pierre.

In: Physical Review Letters, Vol. 88, No. 7, 18.02.2002, p. 704081-704084.

Research output: Contribution to journalArticle

Pu, Han ; Zhang, Weiping ; Wilkens, Martin ; Meystre, Pierre. / Phonon spectrum and dynamical stability of a dilute quantum degenerate Bose-Fermi mixture. In: Physical Review Letters. 2002 ; Vol. 88, No. 7. pp. 704081-704084.
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