Virial expansion for a strongly correlated Fermi gas

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dc.creatorLiu, Xia-Ji
dc.creatorHu, Hui
dc.creatorDrummond, Peter D.
dc.date2009-03-31
dc.date2009-04-25
dc.date.accessioned2026-07-07T13:08:10Z
dc.date.available2026-07-07T13:08:10Z
dc.descriptionUsing a high temperature virial expansion, we present a controllable study of the thermodynamics of strongly correlated Fermi gases near the BEC-BCS crossover region. We propose a practical way to determine the expansion coefficients for both harmonically trapped and homogeneous cases, and calculate the third order coefficient $b_{3}(T)$ at finite temperatures $T$. At resonance, a $T$-independent coefficient $b_{3,\infty}^{\hom}\approx-0.29095295$ is determined in free space. These results are compared with a recent thermodynamic measurement of $^{6}$Li atoms, at temperatures below the degeneracy temperature, and with Monte Carlo simulations.
dc.description4 pages,4 figures. published in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/0903.5366
dc.identifierhttp://arxiv.org/abs/0903.5366
dc.identifierPhys. Rev. Lett. 102 (2009) 160401
dc.identifierdoi:10.1103/PhysRevLett.102.160401
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/228331
dc.subjectQuantum Gases
dc.subjectStatistical Mechanics
dc.titleVirial expansion for a strongly correlated Fermi gas
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