Spin response of a normal Fermi liquid with noncentral interactions
arXiv:0908.0950 · doi:10.1103/PhysRevC.80.055805
Abstract
We consider the spin response of a normal Fermi liquid with noncentral interactions under conditions intermediate between the collisionless and hydrodynamic regimes. This problem is of importance for calculations of neutrino properties in dense matter. By expressing the deviation of the quasiparticle distribution function from equilibrium in terms of eigenfunctions of the transport equation under the combined influence of collisions and an external field, we derive a closed expression for the spin-density--spin-density response function and compare its predictions with that of a relaxation time approximation. Our results indicate that the relaxation time approximation is reliable for neutrino properties under astrophysically relevant conditions.
9 pages, 2 figures; NORDITA-2009-36
References in corpus (5)
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- Chiral effective field theory calculations of neutrino processes in dense matter
- Neutrino emission in neutron stars
- Unified approach to structure factors and neutrino processes in nucleon matter
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Cited by in corpus (8)
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- Supernova matter at subnuclear densities as a resonant Fermi gas: Enhancement of neutrino rates
- Nuclear matter response function with a central plus tensor Landau interaction
- Tensor Fermi liquid parameters in nuclear matter from chiral effective field theory
- Transport coefficients of magnetized neutron star cores
- Response functions of cold neutron matter: density, spin and current fluctuations