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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.||URI:||https://hdl.handle.net/10356/91825
|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 http://link.aps.org/doi/10.1103/PhysRevB.79.212402.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||SPMS Journal Articles|
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