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Truncation scheme of time-dependent density-matrix approach II

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Abstract.

A truncation scheme of the Bogoliubov-Born-Green-Kirkwood-Yvon hierarchy for reduced density matrices, where a three-body density matrix is approximated by two-body density matrices, is improved to take into account a normalization effect. The truncation scheme is tested for the Lipkin model. It is shown that the obtained results are in good agreement with the exact solutions.

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Author information

Authors and Affiliations

  1. Kyorin University School of Medicine, 181-8611, Mitaka, Tokyo, Japan

    Mitsuru Tohyama

  2. Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-Sud, F-91406, Orsay Cedex, France

    Peter Schuck

  3. Laboratoire de Physique et de Modélisation des Milieux Condensés, CNRS and Université Joseph Fourier, 25 Av. des Martyrs, BP 166, F-38042, Grenoble Cedex 9, France

    Peter Schuck

Authors
  1. Mitsuru Tohyama
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  2. Peter Schuck
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Corresponding author

Correspondence to Mitsuru Tohyama.

Additional information

Communicated by D. Blaschke

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Tohyama, M., Schuck, P. Truncation scheme of time-dependent density-matrix approach II. Eur. Phys. J. A 53, 186 (2017). https://doi.org/10.1140/epja/i2017-12377-3

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  • DOI: https://doi.org/10.1140/epja/i2017-12377-3

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