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Exotic Superfluidity in Cold Atoms

    https://doi.org/10.1142/9789814304030_0039Cited by:0 (Source: Crossref)
    Abstract:

    We derived the low energy effective action for the collective modes in asymmetric fermionic systems with attractive interaction. We obtained the phase diagram in terms of the chemical potentials. It features a stable gapless superfluidity with one Fermi surface on the BEC side of the resonance. Also we predict a sharp increase in outer core of a vortex, i.e. vortex size, upon entering into the gapless phase. This may serve as a signature of a gapless phase.