QED Second Order Corrections on the Speed of Light at Low Temperature
Abstract
We want to study thermal corrections on the speed of light at low temperature considering temperature dependence of photon vacuum polarization tensor at twoloop level in the standard QED. It is found that the heat bath behaves as a dispersive medium to the propagation of light and reduces its speed proprtional to the second order of temperature. Similiraties and differences with already known calculations which are based on EulerHeisenberg Lagrangian and/or those using temperature dependent electromagnetic properties of the medium are discussed.
 Publication:

arXiv eprints
 Pub Date:
 August 2013
 DOI:
 10.48550/arXiv.1308.4124
 arXiv:
 arXiv:1308.4124
 Bibcode:
 2013arXiv1308.4124R
 Keywords:

 High Energy Physics  Phenomenology;
 High Energy Physics  Theory;
 Quantum Physics
 EPrint:
 12 pages including an Appendix