Suppression of modes in the random phase approximation
arXiv:nucl-th/0412023 · doi:10.1103/PhysRevLett.94.092503
Abstract
A general but simple method is proposed to eliminate the quantum fluctuations generated by selected one-body operators in the excitation spectrum of a discrete RPA Hamiltonian. This method provides an outstanding tool for the removal of the contaminating spurious effects originated from symmetry violations. It can be also applied as a mode filter for analysising RPA response functions.
2 figures, submitted to PRL