3P2 pairing near the transition temperature in neutron-star matter

Author(s): P. Muzikar, J. A. Sauls and J. W. Serene
Comments: 9 Journal pages
Journal-ref: Phys. Rev. D 21, 1494 (1980)

Using Ginzburg-Landau theory, we consider the effect of a magnetic field on the anisotropic (3P2) neutron superfluid. In a strong magnetic field the pairing state has an angle-dependent energy gap with a node along the field direction. Methods of homotopy theory are used to determine the topologically stable line defects allowed by the 3P2 order parameters. Our free-energy analysis of line vortices gives a qualitatively different structure to the single vortex, outside of the core region, from that obtained by other authors.

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