American Journal of Physics

Density Matrix Representations

John D. Patterson

Published Dec 1, 1962• 6 citations

Abstract

The relations between the ordinary density matrix, the density matrix in the coordinate representation, the Löwdin density matrices, the Dirac density matrix, and other density matrices are traced. The roles of pure and mixed cases, equilibrium and nonequilibrium situations, and single- and many-body representations are considered.

DOI: 10.1119/1.1941845

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