Collective modes of Fermi superfluid containing vortices along the BEC-BCS crossover

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Using the coarse-grain averaged hydrodynamic approach, we calculate all low energy transverse excitation spectrum of a rotating Fermi superfluid containing vortex lattices for all regimes along the BEC-BCS crossover. In the fast rotating regime, the molecular BEC enters into the lowest Landau level, but the superfluid in the unitarity and the BCS regimes occupies many low-lying Landau levels. The difference between the breathing mode frequencies at the BEC and unitarity limit shrinks to zero as the rotation speed approaches the radial trap frequency, in contrast to the finite difference in the non-rotating systems.
To appear in Physical Review A

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Mesoscale and Nanoscale Physics, Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/103078

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0510721
 http://arxiv.org/abs/cond-mat/0510721
 Physical Review A 73, 025601 (2006)
 doi:10.1103/PhysRevA.73.025601

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arXiv