Quasiparticle Random Phase Approximation with an optimal Ground State

Details Quasiparticle Random Phase Approximation with an optimal Ground State Quasiparticle Random Phase Approximation with an optimal Ground State

2001-03-05

arxiv.org/abs/nucl-th/0103012v1

J.Phys.G27:1757-1766,2001

Physics

Nuclear Physics

Nuclear Theory

13 pages, RevTex, 3 postscript figures

Scientific paper

10.1088/0954-3899/27/8/305

A new Quasiparticle Random Phase Approximation approach is presented. The corresponding ground state is variationally determined and exhibits a minimum energy. New solutions for the ground state, some with spontaneously broken symmetry, of a solvable Hamiltonian are found. A non-iterative procedure to solve the non-linear QRPA equations is used and thus all possible solutions are found. These are compared with the exact results as well as with the solutions provided by other approaches.

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