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

D. H. Santamore·Sergio Gaudio·Eddy Timmermans
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Abstract

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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D. H. Santamore, Sergio Gaudio, Eddy Timmermans. 2004-11-05. Zero sound in a single component fermion - Bose Einstein Condensate mixture. https://doi.org/10.1103/physrevlett.93.250402

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