COMPARATIVE-STUDY ON THE VALIDITY OF THE RENORMALIZED RANDOM-PHASE-APPROXIMATION

Authors
CIVITARESE O REBOIRO M
Citation
O. Civitarese et M. Reboiro, COMPARATIVE-STUDY ON THE VALIDITY OF THE RENORMALIZED RANDOM-PHASE-APPROXIMATION, Physical review. C. Nuclear physics, 57(6), 1998, pp. 3062-3070
Citations number
31
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
57
Issue
6
Year of publication
1998
Pages
3062 - 3070
Database
ISI
SICI code
0556-2813(1998)57:6<3062:COTVOT>2.0.ZU;2-8
Abstract
The consistency of the renormalized random-phase approximation (RRPA), to treat correlations nearby a phase transition, is analyzed. The res ults of the RRPA and its quasiparticle version (RQRPA) for monopole an d quadrupole particle-hole excitations and pairing, vibrational modes, are compared with exact results and with results of the conventional quasiparticle random-phase approximation (QRPA). The calculations are performed in schematic models.