Published September 2017 | Version v1
Journal article Metadata-only

Truncation scheme of time-dependent density-matrix approach II

Creators

  • 1. Kyorin University School of Medicine, Mitaka, Tokyo (Japan)
  • 2. Laboratoire de Physique et de Modelisation des Milieux Condenses, CNRS et Universite Joseph Fourier, Grenoble (France)
  • 3. Institut de Physique Nucleaire, IN2P3-CNRS, Universite Paris-Sud, Orsay (France)

Description

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. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epja/i2017-12377-3

Additional details

Identifiers

DOI
10.1140/epja/i2017-12377-3;

Publishing Information

Journal Title
European Physical Journal. A
Journal Volume
53
Journal Issue
9
Journal Page Range
p. 1-4
ISSN
1434-6001

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
48091577
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
BBGKY EQUATION; BINDING ENERGY; CORRELATIONS; DENSITY MATRIX; FERMIONS; GROUND STATES; HAMILTONIANS; MATHEMATICAL MODELS; THREE-BODY PROBLEM; TIME DEPENDENCE; TWO-BODY PROBLEM
Descriptors DEC
DIFFERENTIAL EQUATIONS; ENERGY; ENERGY LEVELS; EQUATIONS; MANY-BODY PROBLEM; MATHEMATICAL OPERATORS; MATRICES; QUANTUM OPERATORS