ua nt - p h / 97 05 02 0 v 1 1 2 M ay 1 99 7 Trace forms for the generalized Wigner functions
نویسنده
چکیده
We derive simple formulas connecting the generalized Wigner functions for s-ordering with the density matrix, and vice-versa. These formulas proved very useful for quantum mechanical applications, as, for example, for connecting master equations with Fokker-Planck equations, or for evaluating the quantum state from Monte Carlo simulations of Fokker-Planck equations, and finally for studying positivity of the generalized Wigner functions in the complex plane.
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