Effect of polarization on superfluidity in low density neutron matter

Details Effect of polarization on superfluidity in low density neutron matter Effect of polarization on superfluidity in low density neutron matter

Apr 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976phla...61..331c&link_type=abstract

Physics Letters, vol. 61B, Apr. 12, 1976, p. 331-334.

Physics

22

Neutron Stars, Polarization Characteristics, Superfluidity, Electron Energy, Isotropic Media, Particle Interactions

Scientific paper

The singlet-state quasi-particle interaction in neutron matter is examined on the basis of results of a detailed evaluation of the Landau Fermi-liquid parameters for pure neutron effects, including polarization effects. This means that the interaction induced by exchange of density and spin-density excitations is taken into account. It is shown that polarization actually works to suppress the pairing matrix elements, owing to the spin dependence of the quasi-particle interaction and, ultimately, the balance of attraction, repulsion, and spin dependence in the fundamental two-neutron interaction. Since the isotropic energy gap and the condensation energy in low-density neutron-star matter are extremely sensitive functions of the pairing matrix elements, they will also be suppressed by the polarizability of the neutron medium.

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