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

Yoji Ohashi
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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 $L_z=\pm1,0$, 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.

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Yoji Ohashi. 2004-10-20. BCS-BEC crossover in a gas of Fermi atoms with a p-wave Feshbach resonance. https://doi.org/10.1103/physrevlett.94.050403

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