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Quasiparticle Random Phase Approximation with an optimal Ground State

F. Simkovic·M. Smotlak·A. A. Raduta
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Abstract

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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F. Simkovic, M. Smotlak, A. A. Raduta. 2001-03-05. Quasiparticle Random Phase Approximation with an optimal Ground State. https://doi.org/10.1088/0954-3899%2F27%2F8%2F305

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