TY - JOUR
T1 - QED second order corrections on the speed of light at low temperature
TT - تصحیحات مرتبه دوم QED روی سرعت نور در دمای پایین
JF - IJPR
JO - IJPR
VL - 14
IS - 3
UR - http://ijpr.iut.ac.ir/article-1-1648-en.html
Y1 - 2014
SP - 85
EP - 88
KW - QED radiative corrections
KW - finite temperature quantum field theory
KW - the speed of light
N2 - We want to study thermal corrections on the speed of light at low temperature considering temperature dependence of photon vacuum polarization tensor at two-loop level in the standard QED. It is found that the heat bath behaves as a dispersive medium for the propagation of light and reduces its speed proportional to the second order of temperature. Similarities and differences, in light of already known calculations which are based on Euler-Heisenberg Lagrangian and/or those using temperature dependent electromagnetic properties of the medium are discussed.
M3
ER -