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quant-ph2021★ 1 cited
On the Wigner Distribution of the Reduced Density Matrix
Maurice de Gosson, Charlyne de Gosson
CConsider a bipartite quantum system consisting of two subsystems A and B. The reduced density matrix ofA a is obtained by taking the partial trace with respect to B. In this work,…
quant-ph2021
On the Non-Uniqueness of Statistical Ensembles Defining a Density Operator and a Class of Mixed Quantum States with Integrable Wigner Distribution
Charlyne de Gosson, Maurice de Gosson
It is standard to assume that the Wigner distribution of a mixed quantum state consisting of square-integrable functions is a quasi-probability distribution, that is that its integ…