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Title: Correlation density matrix : an unbiased analysis of exact diagonalizations
Authors: Henley, Christopher L.
Cheong, Siew Ann
Keywords: DRNTU::Science::Physics::Atomic physics::Solid state physics
Issue Date: 2009
Source: Cheong, S. A., & Henley, C. L. (2009). Correlation density matrix : an unbiased analysis of exact diagonalizations. Physical Review B, 79.
Series/Report no.: Physical review B
Abstract: 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 systematically by a numerical singular-value decomposition to provide a systematic and unbiased way to identify the operator(s) dominating the correlations, even unexpected ones.
ISSN: 1098-0121
DOI: 10.1103/PhysRevB.79.212402
Rights: Physical Review B © copyright 2009 The American Physical Society. The journal's website is located at
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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