Computing the quantum Boltzmann equation from a Kossakowski-Lindblad generator.

A.K. CHATTAH; M.O. CÁCERES; HORACIO DESCALZI; JAVIER MARTINEZ; ENRIQUE TIRAPEGUI

Instabilities and Nonequilibrium Structures VII & VIII

Kluwer Academic Publishers

Año: 2004; p. 183 - 195

We obtain the quantum Boltzmann equation for the occupation number of electronic states, for the polaron model. The calculation is performed under the picture of a quantum dynamical semigroup. Starting from a microscopic dynamics, we also discuss the formal aspects of these quantum semigroups deduced from second order perturbation theory. Our formalism allows us to obtain the mean value and the °uctuations of any physical observable for the system of interest.