28aSR-1 Some Properties of Neutron ^3P_2 Superuidity

Lihong Zhou, Wei Yi, Xiaoling Cui

A. Steyerl

H. Furukawa, Ryozo Tamagaki

To study how the 3P2-dominant pairing correlation in the π0-condensed phase differs from the 3P2 one in the Fermi gas, the Cooper pair problem is solved for neutrons in a well-localized spin-aligned layer. Energy gaps are smaller by a factor 2∼3 than those in the ordinary case.

P. V. E. McClintock

Toshimitsu Fujita, T. Tsuneto

The purpose of this work is to study superfluid properties of a neutral fermion system with pairing in a non-zero angular momentum state, in particular, with 3P2 pairing expected in neutron stars. The gap equation and the equation of the Ginzburg-Landau (G-L) type are derived for general pairing. We then specialize to the case of 3P2 pairing and present the G-L equation for the five component order parameter in the form of a non-linear field equation for a spin 2 field. The expressions for the free energy, the current density and the angular momentum density are found in terms of the order parameter. With the help of the G-L equation some features of vortex states are discussed.

Vladimir V. Dmitriev