caa a22 4500 465801498 CHVBK 20180323112053.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF01294974 doi (NATIONALLICENCE)springer-10.1007/BF01294974 Ground state correlations in the BCS treatment of a monopole pairing Hamiltonian [Elektronische Daten] [O. Civitarese, A. DePaoli] The treatment of a monopole pairing Hamiltonian, in the quasiparticle basis and with the inclusion of ground state correlations, is discussed. The theoretical procedure is based on the BCS method supplemented by a variational treatment of ground state correlations. A significant improvement in the results is found, for ground state energies, when the comparison between correlated, BCS and exact values is performed. Results are discussed for one and two level model configurations. Springer-Verlag, 1990 21.60.Ev nationallicence Civitarese O. Department of Physics, University of La Plata, C.C.67, 1900, La Plata, Argentina aut DePaoli A. Department of Physics, University of La Plata, C.C.67, 1900, La Plata, Argentina aut Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 337/4(1990-12-01), 377-381 0939-7922 337:4<377 1990 337 218 https://doi.org/10.1007/BF01294974 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01294974 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Civitarese O. Department of Physics, University of La Plata, C.C.67, 1900, La Plata, Argentina aut NATIONALLICENCE 700 1- DePaoli A. Department of Physics, University of La Plata, C.C.67, 1900, La Plata, Argentina aut NATIONALLICENCE 773 0- Zeitschrift für Physik A Atomic Nuclei Springer-Verlag 337/4(1990-12-01), 377-381 0939-7922 337:4<377 1990 337 218 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer