Zero sound in a single component fermion - Bose Einstein Condensate mixture

Details Zero sound in a single component fermion - Bose Einstein Condensate mixture Zero sound in a single component fermion - Bose Einstein Condensate mixture

2004-11-05

arxiv.org/abs/cond-mat/0411125v1

Phys. Rev. Lett. 93, 250402 (2004)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.93.250402

The resonant dynamics of mediated interactions supports zero-sound in a cold atom degenerate mixture of a single component fermion gas and a Bose-Einstein condensate (BEC). We characterize the onset of instability in the phase separation of an unstable mixture and we find a rich collective mode structure for stable mixtures with one undamped mode that exhibits an avoided crossing and a Landau-damped mode that terminates.

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