Superfluid Phases of Triplet Pairing
J. W. Clark, V. A. Khodel, M. V. Zverev
Abstract
The phase transitions in dense neutron matter with triplet pairing have been investigated. The spectrum of phases of the 3P2-3F2 model, which adequately describes pairing in this system, is identified and classified with the aid of a separation method for solving BCS gap equations associated with pairing states of arbitrary angular-momentum content. In addition to usual solutions involving a single value of the magnetic quantum number (and its negative), there exist ten real multicomponent solutions. Five of the corresponding angle-dependent order parameters have nodes, and five do not. In contrast to the case of superfluid 3He, transitions occur between phases with nodeless order parameters. Results for the temperature dependence of the competition between the various phases have been obtained.
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