GROUND-STATE CORRELATION-EFFECTS IN EXTENDED RANDOM-PHASE-APPROXIMATION CALCULATIONS

Authors
MARIANO A KRMPOTIC F PIZA AFRD
Citation
A. Mariano et al., GROUND-STATE CORRELATION-EFFECTS IN EXTENDED RANDOM-PHASE-APPROXIMATION CALCULATIONS, Physical review. C. Nuclear physics, 49(5), 1994, pp. 2824-2827
Citations number
10
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
49
Issue
5
Year of publication
1994
Pages
2824 - 2827
Database
ISI
SICI code
0556-2813(1994)49:5<2824:GCIER>2.0.ZU;2-E
Abstract
We study normalization problems associated with the use of perturbativ ely correlated ground states in extended random phase approximation sc hemes in the context of a specific but typical example. The sensitivit y of the results to the amount of two-particle-two-hole admixtures to the correlated ground state is also investigated in terms of a modific ation of the standard perturbative approach.