We perform self-consistent Skyrme Hartree-Fock calculations with the Coulomb exchange functional using the generalized gradient approximation (GGA). It is found that the Perdew-Burke-Ernzerhof GGA (PBE-GGA) Coulomb exchange functional is able to reproduce the exact-Fock energy for nuclei in a wide region of the nuclear chart with one adjustable parameter. The remaining error of the GGA Coulomb exchange energy with respect to the exact-Fock energy dominantly comes from the functional-driven error.
Coulomb exchange functional with generalized gradient approximation for self-consistent Skyrme Hartree-Fock calculations / T. Naito, X. Roca-Maza, G. Colo, H. Liang. - In: PHYSICAL REVIEW C. - ISSN 2469-9985. - 99:2(2019), pp. 024309.024309-1-024309.024309-9. [10.1103/PhysRevC.99.024309]
Coulomb exchange functional with generalized gradient approximation for self-consistent Skyrme Hartree-Fock calculations
X. Roca-MazaSecondo
;G. ColoPenultimo
;
2019
Abstract
We perform self-consistent Skyrme Hartree-Fock calculations with the Coulomb exchange functional using the generalized gradient approximation (GGA). It is found that the Perdew-Burke-Ernzerhof GGA (PBE-GGA) Coulomb exchange functional is able to reproduce the exact-Fock energy for nuclei in a wide region of the nuclear chart with one adjustable parameter. The remaining error of the GGA Coulomb exchange energy with respect to the exact-Fock energy dominantly comes from the functional-driven error.File | Dimensione | Formato | |
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