Two Transitions in the Damping of a Unitary Fermi Gas

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We measure the temperature dependence of the radial breathing mode in an optically trapped, strongly-interacting Fermi gas of $^6$Li, just above the center of a broad Feshbach resonance. The frequency remains close to the unitary hydrodynamic value, while the damping rate reveals transitions at two well-separated temperatures, consistent with the existence of atom pairs above a superfluid transition.
5 pages, 2 figures

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Soft Condensed Matter, Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/25907

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0502507
 http://arxiv.org/abs/cond-mat/0502507

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arXiv