Volume 96, Number 4, November 2011
|Number of page(s)||5|
|Section||The Physics of Elementary Particles and Fields|
|Published online||11 November 2011|
Born-Infeld black-body radiation
Physics Group, Islamic Azad University, South Tehran Branch - P. O. Box 11365, Tehran 4435, Iran
2 Department of Physics, Alzahra University - P. O. Box 19938, Tehran 91167, Iran
Accepted: 3 October 2011
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-high-temperature systems, including various stellar media and the early universe, are briefly discussed.
PACS: 11.10.Wx – Finite-temperature field theory / 44.40.+a – Thermal radiation / 14.70.Bh – Photons
© EPLA, 2011
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