TRACE FORMS FOR THE GENERALIZED WIGNER FUNCTIONS

Authors
DARIANO GM SACCHI MF
Citation
Gm. Dariano et Mf. Sacchi, TRACE FORMS FOR THE GENERALIZED WIGNER FUNCTIONS, Nuovo cimento della Societa italiana di fisica. B, Relativity, classical and statistical physics, 112(6), 1997, pp. 881-888
Citations number
11
Categorie Soggetti
Physics
Journal title
Nuovo cimento della Societa italiana di fisica. B, Relativity, classical and statistical physics → ACNP
ISSN journal
11241888
Volume
112
Issue
6
Year of publication
1997
Pages
881 - 888
Database
ISI
SICI code
1124-1888(1997)112:6<881:TFFTGW>2.0.ZU;2-U
Abstract
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 examp le, for connecting master equations with Fokker-Planck equations, or f or evaluating the quantum state from Monte Carlo simulations of Fokker -Planck equations, and finally for studying positivity of the generali zed Wigner functions in the complex plane.