Nonlinear Propagation of Incoherent Photons in a Radiation Background

Details Nonlinear Propagation of Incoherent Photons in a Radiation Background Nonlinear Propagation of Incoherent Photons in a Radiation Background

2003-11-08

arxiv.org/abs/hep-ph/0311103v1

Phys.Lett.A330:131-136,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, uses revtex4

Scientific paper

10.1016/j.physleta.2004.07.073

The nonlinear propagation of intense incoherent photons in a photon gas is considered. The photon-photon interactions are governed by a pair of equations comprising a wave-kinetic equation for the incoherent photons in the presence of the slowly varying energy density perturbations of sound-like waves, and an equation for the latter waves in a background where the photon coupling is caused by quantum electrodynamical effects. The coupled equations are used to derive a dispersion relation, which admits new classes of modulational instabilities of incoherent photons. The present instabilities can lead to fragmentation of broadband short photon pulses in astrophysical and laboratory settings.

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