Am. Kowalski et al., SEMICLASSICAL MODEL FOR QUANTUM DISSIPATION, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 52(1), 1995, pp. 165-177
We consider the simple idea of coupling a quantum system to a dissipat
ive classical one through well-defined quantities of the former. The d
ynamical evolution is described via Ehrenfest's theorem. This model is
able to mimic a dissipative temporal evolution, without violation of
any quantal rule.