Spin and spin-isospin instabilities in asymmetric nuclear matter at zero and finite temperatures using Skyrme functionals
arXiv:1011.0553 · doi:10.1103/PhysRevC.82.045804
Abstract
Self-consistent mean field methods based on phenomenological Skyrme effective interactions are known to exhibit spurious spin and spin-isospin instabilities both at zero and finite temperatures when applied to homogeneous nuclear matter at the densities encountered in neutron stars and in supernova cores. The origin of these instabilities is revisited in the framework of the nuclear energy density functional theory and a simple prescription is proposed to remove them. The stability of several Skyrme parametrizations is reexamined.
28 pages, 2 figures
References in corpus (9)
- Further explorations of Skyrme-Hartree-Fock-Bogoliubov mass formulas. XII: Stiffness and stability of neutron-star matter
- The Skyrme Interaction in finite nuclei and nuclear matter
- Microscopic justification of the Equal Filling approximation
- Spin Polarized Asymmetric Nuclear Matter and Neutron Star Matter Within the Lowest Order Constrained Variational Method
- Spin polarized neutron matter within the Dirac-Brueckner-Hartree-Fock approach
- Magnetization of a neutron plasma with Skyrme and Gogny forces in the presence of a strong magnetic field
- Spin ordered phase transitions in isospin asymmetric nuclear matter
- Lowest order constrained variational calculation of polarized neutron matter at finite temperature
- Temperature dependence of magnetic susceptibility of nuclear matter: lowest order constrained variational calculations