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arXiv · hep-ph/0311103

Nonlinear Propagation of Incoherent Photons in a Radiation Background

Padma K. Shukla·Mattias Marklund·Gert Brodin·Lennart Stenflo
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Abstract

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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Padma K. Shukla, Mattias Marklund, Gert Brodin, Lennart Stenflo. 2003-11-08. Nonlinear Propagation of Incoherent Photons in a Radiation Background. https://doi.org/10.1016/j.physleta.2004.07.073

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