UNIFIED PICTURE OF THE BCS NUCLEAR-MODEL BY USE OF THE 1 N EXPANSION/

Authors
KYOTOKU M LIMA CL CHEN HT
Citation
M. Kyotoku et al., UNIFIED PICTURE OF THE BCS NUCLEAR-MODEL BY USE OF THE 1 N EXPANSION/, Physical review. C. Nuclear physics, 53(5), 1996, pp. 2243-2247
Citations number
20
Categorie Soggetti
Physics, Nuclear
Journal title
Physical review. C. Nuclear physics → ACNP
ISSN journal
05562813
Volume
53
Issue
5
Year of publication
1996
Pages
2243 - 2247
Database
ISI
SICI code
0556-2813(1996)53:5<2243:UPOTBN>2.0.ZU;2-F
Abstract
Several BCS-type approximations encountered in the literarature were c orrelated using a 1/N expansion over a set of dispersion type energy e quations, which are the exact solution of a system of fermions interac ting through a pure pairing force. One of the interesting results obta ined is that the BCS + QRPA approximation coincides with the first ord er term of the 1/N expansion.