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Article Dans Une Revue Phys.Rev.C Année : 2021

Symmetry projection to coupled-cluster singles plus doubles wave function through the Monte Carlo method

Résumé

A method for calculating the symmetry-projected energy of coupled-cluster singles plus doubles (CCSD) wave function through the Monte Carlo method is proposed. We present benchmark calculations in considering the three-level Lipkin model which is a simple and minimal model with two phases: spherical and deformed. It is demonstrated that this method gives good ground-state energy and low-lying spectra.

Dates et versions

hal-03171409 , version 1 (16-03-2021)

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Citer

Takahiro Mizusaki, Peter Schuck. Symmetry projection to coupled-cluster singles plus doubles wave function through the Monte Carlo method. Phys.Rev.C, 2021, 104 (3), pp.L031305. ⟨10.1103/PhysRevC.104.L031305⟩. ⟨hal-03171409⟩
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