Truncation scheme of time-dependent density-matrix approach II

Regular Article - Theoretical Physics

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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Copyright information

© SIF, Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Kyorin University School of MedicineMitaka, TokyoJapan
  2. 2.Institut de Physique Nucléaire, IN2P3-CNRS, Université Paris-SudOrsay CedexFrance
  3. 3.Laboratoire de Physique et de Modélisation des Milieux Condensés, CNRS and Université Joseph FourierGrenoble Cedex 9France

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