Quantum Harmonic Analysis of the Density Matrix

Maurice A. de Gosson

Abstract


We will study rigorously the notion of mixed states and their density matrices. We will also discuss the quantum-mechanical consequences of possible variations of Planck's constant h. This review has been written having in mind two readerships: mathematical physicists and quantum physicists. The mathematical rigor is maximal, but the language and notation we use throughout should be familiar to physicists.

Quanta 2018; 7: 74–110.


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DOI: http://dx.doi.org/10.12743/quanta.v7i1.74

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