Born-Infeld Black-Body Radiation

TL;DR

This paper investigates how Born-Infeld electrodynamics modifies black-body radiation, revealing that photon self-interactions increase internal energy at 2-loop order, with potential implications for high-temperature astrophysical systems.

Contribution

It provides the first calculation of black-body radiation deviations in Born-Infeld theory at 2-loop order, highlighting differences from non-Abelian photon interactions.

Findings

Photon self-interactions increase internal energy at 2-loop order.

Deviations from Planck's law are computed within Born-Infeld theory.

Implications for early universe and stellar media are discussed.

Abstract

The problem of black-body radiation is considered in the Born-Infeld theory of electrodynamics. In particular, at 2-loop order the deviation from the Planck expression due to the self-interaction of photons is calculated. It is seen that the system of interacting photons of the theory, opposed to its non-Abelian counterpart, has higher internal energy at this order of perturbation. Possible implications of the result on the evolution of very hight temperature systems, including various stellar media and the early universe, are briefly discussed.