Self-consistent random phase approximation in the Schutte-Da-Providencia fermion-boson model
Nuclear Theory
2009-11-10 v2
Abstract
Self-consistent random phase approximation (SCRPA) is applied to the exactly solvable model with fermion boson coupling proposed by Sch\"utte and Da-Providencia. Very encouraging results in comparison with the exact solution of the model for various observables are obtained. The transition from the normal phase to the phase with a spontaneously broken symmetry is carefully investigated. The strong reduction of the variance in SCRPA vs HF is pointed out.
Cite
@article{arxiv.nucl-th/0305077,
title = {Self-consistent random phase approximation in the Schutte-Da-Providencia fermion-boson model},
author = {A. Rabhi},
journal= {arXiv preprint arXiv:nucl-th/0305077},
year = {2009}
}
Comments
4 pages, 5 figures and 1 table, to be published in Phys. Rev. C