Optimization of the number of intrinsic states included in the discrete Generator Coordinate Method

Autor:	Tomás Raúl Rodríguez Frutos, Jaime Martínez-Larraz
Přispěvatelé:	UAM. Departamento de Física Teórica
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	Nuclear Theory (nucl-th) Isotopes Nuclear Theory Bogoliubov Theory Nuclear Properties Física FOS: Physical sciences
Popis:	We present a mechanism to efficiently pre-select the number of intrinsic many-body states that are used to define the many-body wave functions within the discrete Generator Coordinate Method (GCM). This procedure, based on the proper definition of a natural basis of orthonormal states, does not require the evaluation of the non-diagonal Hamiltonian kernels to do the selection and helps to reduce the numerical instabilities. The performance of the method is analyzed in detail in the ground state and $0^{+}$ excited states of some selected nuclei computed with the Gogny energy density functional.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0e540d9fcdb28b5a192ae6f447e7d84 http://arxiv.org/abs/2208.10870 Zobrazit plný text záznamu