Monte Carlo computation of pair correlations in excited nuclei

Abstract

We present a novel quantum Monte Carlo method based on a path integral in Fock space, which allows to compute finite-temperature properties of a many-body nuclear system with a monopole pairing interaction in the canonical ensemble. It enables an exact calculation of the thermodynamic variables such as the internal energy, the entropy, or the specific heat, from the measured moments of the number of hops in a path of nuclear configurations. Monte Carlo calculations for a single-shell $(h_{11/2}{)}^6$ model are consistent with an exact calculation from the many-body spectrum in the seniority model.

5 pages uuencoded Postscript

References in corpus (7)

• Quantum Monte Carlo Calculations of $A\le 6$ Nuclei
• Monte Carlo evaluation of path integrals for the nuclear shell model
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• Thermal properties of Fe-54
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Cited by in corpus (3)

• A quantum Monte-Carlo method for fermions, free of discretization errors
• Loop updates for quantum Monte Carlo simulations in the canonical ensemble
• Quantum Monte Carlo simulation in the canonical ensemble at finite temperature