Spin polarized neutron matter within the Dirac-Brueckner-Hartree-Fock approach
arXiv:nucl-th/0607029 · doi:10.1103/PhysRevC.75.034315
Abstract
The relation between energy and density (known as the nuclear equation of state) plays a major role in a variety of nuclear and astrophysical systems. Spin and isospin asymmetries can have a dramatic impact on the equation of state and possibly alter its stability conditions. An example is the possible manifestation of ferromagnetic instabilities, which would indicate the existence, at a certain density, of a spin-polarized state with lower energy than the unpolarized one. This issue is being discussed extensively in the literature and the conclusions are presently very model dependent. We will report and discuss our recent progress in the study of spin-polarized neutron matter. The approach we take is microscopic and relativistic. The calculated neutron matter properties are derived from realistic nucleon-nucleon interactions. This makes it possible to understand the nature of the EOS properties in terms of specific features of the nuclear force model.
arXiv comment6 pages, 11 figures, revised/extended calculations
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- Chiral EFT based nuclear forces: Achievements and challenges
- Extended Skyrme interactions for nuclear matter, finite nuclei and neutron stars
- Anisotropic pressure in dense neutron matter under the presence of a strong magnetic field
- Nuclear response for the Skyrme effective interaction with zero range tensor terms
- Nuclear response for the Skyrme effective interaction with zero-range tensor terms. II. Sum rules and instabilities
- Finite temperature effects on anisotropic pressure and equation of state of dense neutron matter in an ultrastrong magnetic field
- Magnetic susceptibility and magnetization properties of asymmetric nuclear matter under a strong magnetic field
- Nuclear response for the Skyrme effective interaction with zero-range tensor terms. III. Neutron matter and neutrino propagation
- Spin polarized states in neutron matter at a strong magnetic field
- Neutron Fermi Liquids under the presence of a strong magnetic field with effective nuclear forces
- Relativistic nucleon optical potentials with isospin dependence in Dirac Brueckner Hartree-Fock approach
- To which densities is spin-polarized neutron matter a weakly interacting Fermi gas?
- Study of spin polarized nuclear matter and finite nuclei with finite range simple effective interaction
- Neutron matter under strong magnetic fields: a comparison of models
- Finite temperature effects on spin polarization of neutron matter in a strong magnetic field
- Unusual temperature behavior of entropy of antiferromagnetic spin state in nuclear matter with effective finite range interaction
- Spin-polarized neutron matter at different orders of chiral effective field theory
- Spin- and isospin-polarized states of nuclear matter in the Dirac-Brueckner-Hartree-Fock model
- Spin-polarized low-density neutron matter
- Influence of the nuclear matter equation of state on the r-mode instability using the finite-range simple effective interaction
- Temperature-dependence of single-particle properties in isospin-symmetric and -asymmetric matter within the Dirac-Brueckner-Hartree-Fock model
- The splitting of the one-body potential in spin-polarized isospin-symmetric nuclear matter
- Phase transition to the state with nonzero average helicity in dense neutron matter
- Hot and highly magnetized neutron star matter properties with Skyrme interactions