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Título: | Density matrix renormalization group approach to two-fluid open many-fermion systems |
Autor: | Rotureau, J.; Michel, N.; Nazarewicz, Witold; Ploszajczak, Marek; Dukelsky, Jorge CSIC ORCID | Fecha de publicación: | 2009 | Editor: | American Physical Society | Citación: | Physical Review C - Nuclear Physics 79 (2009) | Resumen: | We have extended the density matrix renormalization group (DMRG) approach to two-fluid open many-fermion systems governed by complex-symmetric Hamiltonians. The applications are carried out for three- and four-nucleon (proton-neutron) systems within the Gamow shell model (GSM) in the complex-energy plane. We study necessary and sufficient conditions for the GSM+DMRG method to yield the correct ground-state eigenvalue and discuss different truncation schemes within the DMRG. The proposed approach will enable configuration interaction studies of weakly bound and unbound strongly interacting complex systems, which, because of a prohibitively large size of Fock space, cannot be treated by means of the direct diagonalization. © 2009 The American Physical Society. | URI: | http://hdl.handle.net/10261/73235 | DOI: | 10.1103/PhysRevC.79.014304 | Identificadores: | doi: 10.1103/PhysRevC.79.014304 issn: 0556-2813 |
Aparece en las colecciones: | (CFMAC-IEM) Artículos |
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