title: Stochastic electron gas theory of coherence in laser-driven synchrotron radiation
abstract: The transition from coherent to incoherent laser-driven synchrotron radiation is studied within the framework of a stochastic electron gas model. The fundamental difference between this approach and a relativistic fluid model resides in the fact that, for any number of incoherently phased point electrons, the 4-current contains Fourier components at arbitrarily short wavelengths, whereas the fluid model introduces an unphysical cutoff scale.
authors.affiliation: Institute for Laser Science and Applications, Lawrence Livermore National Laboratory, Livermore, California 94550, USA.
authors.initials: FV
authors.lastname: Hartemann