A constrained-path quantum Monte-Carlo approach for the nuclear shell model

J. Bonnard 1 O. Juillet 2
1 INFN, Sezione di Padova - Istituto Nazionale di Fisica Nucleare, Sezione di Padova
2 LPCC - Laboratoire de physique corpusculaire de Caen
Abstract : A new QMC approach for the shell model yielding nearly exact spectroscopy of nuclei is presented. The originality of the formalism lies in the use of a variational symmetry-restored wave function to ‘steer’ the Brownian motion, and to control the sign/phase problem that generally makes the traditional QMC samplings totally ineffective by causing a prohibitive growth of the statistical errors. Tests of convergence and proof-of-principle results are reported.
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Communication dans un congrès
21st International School on Nuclear Physics and Applications & the International Symposium on Exotic Nuclei, Sep 2015, Varna, Bulgaria. Journal of Physics : Conference series, 724, pp.012004, 2016, 〈10.1088/1742-6596/724/1/012004〉
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J. Bonnard, O. Juillet. A constrained-path quantum Monte-Carlo approach for the nuclear shell model. 21st International School on Nuclear Physics and Applications & the International Symposium on Exotic Nuclei, Sep 2015, Varna, Bulgaria. Journal of Physics : Conference series, 724, pp.012004, 2016, 〈10.1088/1742-6596/724/1/012004〉. 〈in2p3-01348905〉

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