Interference effects in the scattering of identical atoms in a laser radiation field

The properties of the collision integral in a quantum Boltzmann-type kineti c equation are studied under the conditions of spatially nonuniform distrib utions of colliding particles interacting with an external electromagnetic field. The components of the nonlinear resonances and the velocity distribu tion of the excited atoms, which are due to polarization transitions, are d etermined on the basis of the Kazantsev collision integral. (C) 2000 MAIK " Nauka/ Interperiodica".