Solution of the Skyrme HF+BCS equation on a 3D mesh. II. A new version of the Ev8 code
| Autor: | Ryssens, W., Hellemans, V., Bender, M., Heenen, P. -H. |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Comput. Phys. Commun. 187 (2015) 175 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.cpc.2014.10.001 |
| Popis: | We describe a new version of the EV8 code that solves the nuclear Skyrme-Hartree-Fock+BCS problem using a 3-dimensional cartesian mesh. Several new features have been implemented with respect to the earlier version published in 2005. In particular, the numerical accuracy has been improved for a given mesh size by (i) implementing a new solver to determine the Coulomb potential for protons (ii) implementing a more precise method to calculate the derivatives on a mesh that had already been implemented earlier in our beyond-mean-field codes. The code has been made very flexible to enable the use of a large variety of Skyrme energy density functionals that have been introduced in the last years. Finally, the treatment of the constraints that can be introduced in the mean-field equations has been improved. The code Ev8 is today the tool of choice to study the variation of the energy of a nucleus from its ground state to very elongated or triaxial deformations with a well-controlled accuracy. Comment: 24 pages, 3 figures |
| Databáze: | arXiv |
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