Condensate fraction of a two-dimensional attractive Fermi gas

Year: 2007

Authors: Salasnich L.

Autors Affiliation: Univ Padua, Dipartimento Fis G Galilei, CNR, INFM, Via Marzolo 8, I-35131 Padua, Italy

Abstract: We investigate the Bose-Einstein condensation of fermionic pairs in a two-dimensional uniform two-component Fermi superfluid obtaining an explicit formula for the condensate density as a function of the chemical potential and the energy gap. By using the mean-field extended Bardeen-Cooper-Schrieffer theory, we analyze, as a function of the bound-state energy, the off-diagonal long-range order in the crossover from the Bardeen-Cooper-Schrieffer state of weakly bound Cooper pairs to the Bose-Einstein condensate of strongly-bound molecular dimers.

Journal/Review: PHYSICAL REVIEW A

Volume: 76 (1)      Pages from: 015601-1  to: 015601-4

KeyWords: superfluids; Fermi gases;
DOI: 10.1103/PhysRevA.76.015601

ImpactFactor: 2.893
Citations: 34
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