Correlation density matrix : an unbiased analysis of exact diagonalizations

• Main Authors: Henley, Christopher L., Cheong, Siew Ann
• 其他作者: School of Physical and Mathematical Sciences
• 格式: Article
• 語言: English
• 出版: 2009
• 主題: DRNTU::Science::Physics::Atomic physics::Solid state physics
• 在線閱讀: https://hdl.handle.net/10356/91825; http://hdl.handle.net/10220/6108

Given the ground-state wave function for an interacting lattice model, we define a “correlation density matrix” (CDM) for two disjoint separated clusters A and B to be the density matrix of their union minus the direct product of their respective density matrices. The CDM can be decomposed systemati...