Optimization of the number of intrinsic states included in the discrete generator coordinate method
Entity
UAM. Departamento de Física TeóricaPublisher
American Physical SocietyDate
2022-11-01Citation
10.1103/PhysRevC.106.054301
Physical Review C 106.5 (2022): 054301
ISSN
2469-9985 (print); 2469-9993 (online)DOI
10.1103/PhysRevC.106.054301Project
Gobierno de España. PGC2018-094583-B-I00Editor's Version
https://doi.org/10.1103/PhysRevC.106.054301Subjects
Bogoliubov Theory; Nuclear Properties; Isotopes; FísicaRights
© 2022 American Physical SocietyAbstract
We present a mechanism to efficiently preselect 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 nondiagonal 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
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Google Scholar:Martínez-Larraz Torra, Jaime
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Rodríguez Frutos, Tomás Raúl
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