Temperature and finite-size effects in collective modes of superfluid Fermi gases

Details Temperature and finite-size effects in collective modes of superfluid Fermi gases Temperature and finite-size effects in collective modes of superfluid Fermi gases

2005-07-29

arxiv.org/abs/cond-mat/0507714v1

Phys.Rev. A72 (2005) 043617

Physics

Condensed Matter

Other Condensed Matter

9 pages, 4 figures

Scientific paper

10.1103/PhysRevA.72.043617

We study the effects of superfluidity on the monopole and quadrupole collective excitations of a dilute ultra-cold Fermi gas with an attractive interatomic interaction. The system is treated fully microscopically within the Bogoliubov-de Gennes and quasiparticle random-phase approximation methods. The dependence on the temperature and on the trap frequency is analyzed and systematic comparisons with the corresponding hydrodynamic predictions are presented in order to study the limits of validity of the semiclassical approach.

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