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

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

Takahiro Mizusaki
(
- Senshu U., Tokyo
)
,
Peter Schuck
(
- IJCLab, Orsay and
- LPMMC, Grenoble
)

Feb 26, 2021

6 pages

Published in:

Phys.Rev.C 104 (2021) 3, L031305

Published: Sep 22, 2021

e-Print:

2103.00120 [nucl-th]

DOI:

10.1103/PhysRevC.104.L031305 (publication)

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Abstract: (APS)

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.

Note:

6 pages, 4 figures, submitted to PRC

References(29)

Figures(4)

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