H. Zoubi et Y. Benaryeh, THE EVOLUTION OF HARMONIC-OSCILLATOR WIGNER FUNCTIONS DESCRIBED BY THE USE OF GROUP-REPRESENTATIONS, Quantum and semiclassical optics, 10(2), 1998, pp. 447-458
The time development of harmonic oscillator Wigner functions under qua
dratic Hamiltonians, including Markoffian damping terms, fbr thermal a
nd squeezed reservoirs, is analysed by the use of group-theoretical me
thods.