Absorption of Electro-magnetic Waves in a Magnetized Medium
arXiv:hep-ph/0007027 · doi:10.1103/PhysRevD.63.065001
Abstract
In continuation to our earlier work, in which the structure of the vacuum polarisation tensor in a medium was analysed in presence of a background electro-magnetic field, we discuss the absorptive part of the vacuum polarization tensor. Using the real time formalism of finite temperature field theory we calculate the absorptive part of 1-loop vacuum polarisation tensor in the weak field limit (). Estimates of the absorption probability are also made for different physical conditions of the background medium.
9 Pages. One figure. LaTeX