Superfluid phase transitions in dense neutron matter - art. no. 031103

The phase transitions in a realistic system with triplet pairing, dense neu tron matter, have been investigated. The spectrum of phases of the P-3(2)-F -3(2) model, which adequately describes pairing in this system, is analytic ally constructed with the aid of a separation method for solving BCS gap eq uations in states of arbitrary angular momentum. In addition to solutions i nvolving a single value of the magnetic quantum number (and its negative), there exist ten real multicomponent solutions. Five of the corresponding an gle-dependent order parameters have nodes, and five do not. In contrast to the case of superfluid He-3, transitions occur between phases with nodeless order parameters.