Restoration of broken symmetries in Self-Consistent RPA
Nuclear Theory
2007-05-23 v1
Abstract
It is shown that the Self-Consistent RPA (SCRPA) approach allows in a very natural way to restore symmetries, spontaneously broken on the mean field level. This is achieved via the introduction of a second Lagrange multiplier which constrains the variance of the symmetry operator to zero. This important feature of SCRPA, here pointed out for the first time, is illustrated employing a simplified model of the nuclear superfluidity.
Keywords
Cite
@article{arxiv.nucl-th/0106064,
title = {Restoration of broken symmetries in Self-Consistent RPA},
author = {A. Rabhi and P. Schuck and R. Bennaceur and G. Chanfray and J. Dukelsky},
journal= {arXiv preprint arXiv:nucl-th/0106064},
year = {2007}
}
Comments
6 pages, submitted to Phys. Rev. C