Isovector proton-neutron pairing and Wigner energy in Hartree-Fock mean field calculations
نویسندگان
چکیده
منابع مشابه
Contact Pairing Interaction for the Hartree- Fock-bogoliubov Calculations
Properties of density-dependent contact pairing interactions in nuclei are discussed. It is shown that the pairing interaction that is intermediate between surface and volume pairing forces gives the pairing gaps that are compatible with the experimental odd-even mass staggering. Results of the deformed Hartree-Fock-Bogoliubov calculations for this \mixed" pairing interaction, and using the tra...
متن کاملExact solution of the isovector neutron-proton pairing Hamiltonian.
The complete exact solution of the T = 1 neutron-proton pairing Hamiltonian is presented in the context of the SO(5) Richardson-Gaudin model with nondegenerate single-particle levels and including isospin symmetry-breaking terms. The power of the method is illustrated with a numerical calculation for for 64Ge for a pf + g9/2 model space which is out of reach of modern shell-model codes.
متن کاملIsovector neutron-proton pairing with particle number projected BCS
The particle number projected BCS (PBCS) approximation is tested against the exact solution of the SO(5) Richardson-Gaudin model for isovector pairing in a system of nondegenerate single-particle orbits. Two isovector PBCS wave functions are considered. One is constructed as a single proton-neutron pair condensate; the other corresponds to a product of a neutron pair condensate and a proton pai...
متن کاملNeutron rich nuclei in density dependent relativistic Hartree-Fock theory with isovector mesons
Density dependent relativistic Hartree-Fock theory has been extended to describe properties of exotic nuclei. The effects of Fock exchange terms and of πand ρmeson contributions are discussed. These effects are found to be more important for neutron rich nuclei than for nuclei near the valley of stability. PACS: 21.10.Dr, 21.10.Gv, 21.60.Jz, 24.10.Jv
متن کاملUnrestricted Hartree-Fock theory of Wigner crystals
Wigner first predicted that a system of electrons in a uniform potential would crystallize at low densities. Localizing electrons around lattice sites increases their kinetic energy, but at sufficiently low densities the reduction in interaction energy is always greater. The Wigner crystal remains a theoretical prediction in three dimensions ~3D!, but in 2D Wigner crystals have been created on ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review C
سال: 2014
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.90.024322