Theory of the scattering of an electromagnetic field in gases

It is shown that the Poynting vector in the quantum theory of radiation can always be represented in the form of the sum of coherent and incoherent parts. Equations are obtained which describe the conversion of the radiation from one part to the other.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 81–86, April, 1973.I wish to thank V. L. Bonch-Bruevich for his interest.