Abstract:
Closed system of kinetic equations describing the evolution of neutral radiant gas
as well as the radiation field taking into account the polarisation is obtained on the
basis of the nonequilibrium statistical mechanics methods. Tensor coefficients of the
spontaneous and stimulated radiation are introduced for describing the polarised radiation,
which are generalisations of the scalar Einstein coefficients. Corrections to the
kinetic equation of the transfer of the radiation are obtained taking into account wave
properties of the electromagnetic field. The effect of the radiation processes on the
single particle distribution function of the moleculi is taken into account by the additional
collision integral.