Shell model Monte Carlo methods

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We review quantum Monte Carlo methods for dealing with large shell model problems. These methods reduce the imaginary-time many-body evolution operator to a coherent superposition of one-body evolutions in fluctuating one-body fields; resultant path integral is evaluated stochastically. We first discuss the motivation, formalism, and implementation of such Shell Model Monte Carlo methods. There then follows a sampler of results and insights obtained from a number of applications. These include the ground state and thermal properties of pf-shell nuclei, thermal behavior of {gamma}-soft nuclei, and calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are ... continued below

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33 p.

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Koonin, S. E. & Dean, D. J. October 1996.

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  • Koonin, S. E. California Inst. of Tech., Pasadena, CA (United States). W.K. Kellogg Radiation Lab.
  • Dean, D. J. Oak Ridge National Lab., TN (United States)

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Description

We review quantum Monte Carlo methods for dealing with large shell model problems. These methods reduce the imaginary-time many-body evolution operator to a coherent superposition of one-body evolutions in fluctuating one-body fields; resultant path integral is evaluated stochastically. We first discuss the motivation, formalism, and implementation of such Shell Model Monte Carlo methods. There then follows a sampler of results and insights obtained from a number of applications. These include the ground state and thermal properties of pf-shell nuclei, thermal behavior of {gamma}-soft nuclei, and calculation of double beta-decay matrix elements. Finally, prospects for further progress in such calculations are discussed. 87 refs.

Physical Description

33 p.

Notes

INIS; OSTI as DE96015225

Source

  • International workshop on contemporary nuclear shell models (CSM), Philadelphia, PA (United States), 29-30 Apr 1996

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  • Other: DE96015225
  • Report No.: CONF-9604171--1
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 405725
  • Archival Resource Key: ark:/67531/metadc688058

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  • October 1996

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 21, 2016, 12:10 p.m.

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Koonin, S. E. & Dean, D. J. Shell model Monte Carlo methods, article, October 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc688058/: accessed September 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.