Truncation scheme of time-dependent density-matrix approach II

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.

4 pages, 6 figures

Cited by in corpus (2)

• Truncation scheme of time-dependent density-matrix approach III
• Revisiting the variational two-particle reduced density matrix for nuclear systems