BCS-BEC crossover in a gas of Fermi atoms with a p-wave Feshbach resonance

Abstract

We investigate unconventional superfluidity in a gas of Fermi atoms with an anisotropic p-wave Feshbach resonance. Including the p-wave Feshbach resonance as well as the associated three kinds of quasi-molecules with finite orbital angular momenta $L_z=\pm 1,0$, we calculate the transition temperature of the superfluid phase. As one passes through the p-wave Feshbach resonance, we find the usual BCS-BEC crossover phenomenon. The p-wave BCS state continuously changes into the BEC of bound molecules with L=1. Our calculation includes the effect of fluctuations associated with Cooper-pairs and molecules which are not Bose-condensed.

9 pages, 3 figures, 1 table

References in corpus (2)

• Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
• Phase diagrams for an ideal gas mixture of fermionic atoms and bosonic molecules

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