Collective modes as a probe of the equation of state for partially polarized Fermi gases

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We calculate the collective modes of a partially polarized Fermi gas trapped in a spherically symmetric harmonic potential. We show that the breathing mode frequency exhibits non-monotonic dependence on polarization in the entire BCS-BEC crossover region. Moreover, we find that the breathing mode can be used to distinguish between two commonly used unitary gas equations of state.
4 pages, 2 figures

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Other Condensed Matter

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http://salesiana.dossiersoluciones.com/handle/123456789/113456

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0607491
 http://arxiv.org/abs/cond-mat/0607491

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arXiv