
%0 Journal Article
%A Davies, B 
%A Burkitt, AN 
%T On the Relationship between Quantum, Random and Semiclassical Electrodynamics
%J Australian Journal of Physics
%D 1980/08/01
%V 33
%N 4
%P 671-684
%K 
%R https://doi.org/10.1071/PH800671
%U https://www.publish.csiro.au/paper/PH800671 
%X We investigate a form of random electrodynamics in which random electromagnetic fields are used in conjunction with a semiclassical treatment of the Dirac equation. We demonstrate that the S-matrix expansion of this theory is identical with the quantum electrodynamic expansion. We show how one can determine for a particular process whether or not a purely semiclassical calculation will suffice. In particular we show that the Lamb shift needs for its explanation both semiclassical interactions and random field fluctuations. 
