Quantum models of relaxation
A.B. Brailovskii a
V.L. Vaks a
V.V. Mityugov b
a Institute of Microstructure Physics, Russian Academy of Sciences, ul. Ulyanova 46, Nizhnii Novgorod, 603600, Russian Federation
b Federal Research Center Institute of Applied Physics of the Russian Academy of Sciences, ul. Ulyanova 46, Nizhny Novgorod, 603000, Russian Federation
Exactly solvable quantum models for an atom or a molecule interacting with a physical environment are considered. The kinetic description of the random walk of an open system is shown to be generally consistent with the phenomenological relaxation equations found use in spectroscopy. Some aspects of the problem of entropy increase are also revised.