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Anisotropic Fermi Superfluid via p-wave Feshbach Resonance

Chi-Ho Cheng·S. -K. Yip
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Abstract

We investigate theoretically Fermionic superfluidity induced by Feshbach resonance in the orbital p-wave channel. We show that, due to the dipole interaction, the pairing is extremely anisotropic. When this dipole interaction is relatively strong, the pairing has symmetry $k_z$. When it is relatively weak, it is of symmetry $k_z + i βk_y$ (up to a rotation about $\hat z$, here $β< 1$). A phase transition between these two states can occur under a change in the magnetic field or the density of the gas.

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Chi-Ho Cheng, S. -K. Yip. 2005-04-12. Anisotropic Fermi Superfluid via p-wave Feshbach Resonance. https://doi.org/10.1103/physrevlett.95.070404

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