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arXiv · nucl-th/0012089

Multi-gap superfluidity in nuclear matter

A. I. Akhiezer·A. A. Isayev·S. V. Peletminsky·A. A. Yatsenko
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Abstract

It is shown that under lowering density or temperature a nucleon Fermi superfluid can undergo a phase transition to a new superfluid state corresponding to superposition of states with singlet-triplet (ST) and triplet-singlet (TS) pairing of nucleons (in spin and isospin spaces). Such states arise as a result of branching from one-gap solution of the self-consistent equations, describing ST pairing of nucleons. The density and temperature dependence of the order parameters for new two-gap solutions is determined in the model with Skyrme effective forces.

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A. I. Akhiezer, A. A. Isayev, S. V. Peletminsky, A. A. Yatsenko. 2000-12-25. Multi-gap superfluidity in nuclear matter. https://doi.org/10.1016/s0370-2693(99)00241-5

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