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Variational theory of two-fluid hydrodynamic modes at unitarity

Profile image of Xia-ji LiuXia-ji Liu

2008, Physical Review A

https://doi.org/10.1103/PHYSREVA.77.033608
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17 pages

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Abstract
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This research investigates the variational approach to Landau's two-fluid hydrodynamics for superfluid Fermi gases at unitarity, particularly focusing on breathing and dipole mode frequencies in isotropic traps. The study reveals that the frequencies of in-phase modes remain nearly constant across various temperatures, offering insights into the temperature independence observed in recent experimental data.

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