Breakdown of Hydrodynamics in the Radial Breathing Mode of a Strongly-Interacting Fermi Gas

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dc.creatorKinast, J.
dc.creatorTurlapov, A.
dc.creatorThomas, J. E.
dc.date2004-08-28
dc.date2004-11-09
dc.date.accessioned2026-07-07T12:37:41Z
dc.date.available2026-07-07T12:37:41Z
dc.descriptionWe measure the magnetic field dependence of the frequency and damping time for the radial breathing mode of an optically trapped, Fermi gas of $^6$Li atoms near a Feshbach resonance. The measurements address the apparent discrepancy between the results of Kinast et al., [Phys. Rev. Lett. {\bf 92}, 150402 (2004)] and those of Bartenstein et al., [Phys. Rev. Lett. {\bf 92}, 203201 (2004)]. Over the range of magnetic field from 770 G to 910 G, the measurements confirm the results of Kinast et al. Close to resonance, the measured frequencies are in excellent agreement with predictions for a unitary hydrodynamic gas. At a field of 925 G, the measured frequency begins to decrease below predictions. For fields near 1080 G, we observe a breakdown of hydrodynamic behavior, which is manifested by a sharp increase in frequency and damping rate. The observed breakdown is in qualitative agreement with the sharp transition observed by Bartenstein et al., at 910 G.
dc.description4 pages, 2 figures, 1 table. Revised in response to referees' Comments. Published in PRA(R)
dc.identifierhttps://arxiv.org/abs/cond-mat/0408634
dc.identifierhttp://arxiv.org/abs/cond-mat/0408634
dc.identifierPhys.Rev.A70:051401,2004
dc.identifierdoi:10.1103/PhysRevA.70.051401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218526
dc.subjectSoft Condensed Matter
dc.titleBreakdown of Hydrodynamics in the Radial Breathing Mode of a Strongly-Interacting Fermi Gas
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