Transport properties of the Fermi hard-sphere system

Abstract

The transport properties of neutron star matter play an important role in many astrophysical processes. We report the results of a calculation of the shear viscosity and thermal conductivity coefficients of the hard-sphere fermion system of degeneracy $\nu$=2, that can be regarded as a model of pure neutron matter. Our approach is based on the effective interaction obtained from the formalism of correlated basis functions and the cluster expansion technique. The resulting transport coefficients show a strong sensitivity to the quasiparticle effective mass, reflecting the effect of second order contributions to the self-energy that are not taken into account in nuclear matter studies available in the literature.

References in corpus (6)

• Quantum Monte Carlo calculations of neutron matter with non-local chiral interactions
• Hot neutron matter from a Self-Consistent Green's Functions approach
• Shear viscosity of neutron matter from realistic nucleon-nucleon interactions
• ${}^1{S}_0$ superfluid phase--transition in neutron matter with realistic nuclear potentials and modern many--body theories
• Transport coefficients of nuclear matter in neutron star cores
• Effective interaction approach to the Fermi hard-sphere system

Cited by in corpus (5)

• Perturbation Theory of Nuclear Matter with a Microscopic Effective Interaction
• Superfluid Gap in Neutron Matter from a Microscopic Effective Interaction
• Approximate self-energy for Fermi systems with large s-wave scattering length: a step towards density functional theory
• Dispersion of first sound in a weakly interacting ultracold Fermi liquid
• Exact perturbative expansion of the transport coefficients of a normal low-temperature Fermi gas with contact interactions