The unitary states of superfluid Fermi liquid with singlet D and triplet P type of pairing are investigated in the framework of the weak coupling approximation. The superflow pair-breaking critical current is calculated at zero temperature and in the Ginzburg-Landau region for various values of the respective strengths of singlet and triplet components of the pairing interaction. The dependence of the mass superflow on the a 1 (F 1 s) Landau amplitude is determined. The mixed singlet-triplet states BS (a mixture of BW anisotropic and D-wave states) and 2DS (a mixture of 2D planar and D-wave states) are found to be stable for some region of the superfluid velocity.
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Krzyżanowski, I.H. Superflow and the depairing critical current for spin singlet-triplet states of superfluid Fermi liquid. J Low Temp Phys 71, 119–139 (1988). https://doi.org/10.1007/BF00115045
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DOI: https://doi.org/10.1007/BF00115045