Luca Giorgetti et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 949 doi:10.1088/0953-4075/38/7/015
Quasi-particle properties of trapped Fermi gases
Luca Giorgetti1, Luciano Viverit1, Giorgio Gori1, Francisco Barranco2, Enrico Vigezzi1 and Ricardo A Broglia1,3
Show affiliationsWe develop a consistent formalism in order to explore the effects of density and spin fluctuations on the quasi-particle properties and, as a consequence, on the pairing critical temperature of a trapped Fermi gas on the attractive side of a Feshbach resonance. We first analyse the quasi-particle properties of a gas due to interactions far from resonance (effective mass and lifetime, quasi-particle strength and effective interaction) for the two cases of a spherically symmetric harmonic trap and of a spherically symmetric infinite potential well. We then explore the effect of each of these quantities on Tc and point out the important role played by the discrete level structure.
- PACS
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31.15.xm Quasiparticle methods
32.80.Rm Multiphoton ionization and excitation to highly excited states
- Subjects
- Dates
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Issue 7 (14 April 2005)
Received 29 December 2004
Published 22 March 2005
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Quasi-particle properties of trapped Fermi gases
Luca Giorgetti et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 949
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