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Monte Carlo Computation of Pair Correlations in Excited Nuclei

Cerf, Nicolas J. (1996) Monte Carlo Computation of Pair Correlations in Excited Nuclei. Physical Review Letters, 76 (14). pp. 2420-2423. ISSN 0031-9007. doi:10.1103/PhysRevLett.76.2420.

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We present a novel quantum Monte Carlo method based on a path integral in Fock space, which allows the computation of 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 (h11/2)^6 model are consistent with an exact calculation from the many-body spectrum in the seniority model.

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Additional Information:©1996 The American Physical Society Received 6 September 1995 We are grateful to S.E. Koonin for suggesting this work, and to O.C. Martin for many helpful discussions. We also thank A. Mouchet for useful conversations. The author is supported by a grant from the Human Capital and Mobility Program of the European Union. The Division de Physique Théorique is Unité de Recherche des Universités Paris XI et Paris VI associée au CNRS. See Also: Comment: S. Rombouts and K. Heyde, Comment on “Monte Carlo Computation of Pair Correlations in Excited Nuclei”, Phys. Rev. Lett. 80, 885 (1998). Reply: Nicolas J. Cerf, Cerf Replies:, Phys. Rev. Lett. 80, 886 (1998).
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Deposited On:20 Oct 2006
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