Wigner quasiprobability distribution

The Wigner quasiprobability distribution, also called the Wigner function or the Wigner–Ville distribution, after Eugene Wigner and Jean-André Ville, is a quasiprobability distribution, similar to the Margenau-Hill quasiprobability distribution and the Kirkwood–Dirac quasiprobability distribution. It was introduced by Eugene Wigner in 1932 to study quantum corrections to classical statistical mechanics.

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