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 language | English (US) |
|---|---|
| Article number | 070408 |
| Pages (from-to) | 704081-704084 |
| Number of pages | 4 |
| Journal | Physical review letters |
| Volume | 88 |
| Issue number | 7 |
| DOIs | |
| State | Published - Feb 18 2002 |
ASJC Scopus subject areas
- General Physics and Astronomy
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