Current Conservation in Thermal Field Theory
arXiv:hep-ph/9507273
Abstract
Within the framework of generalized free field theory at nonzero temperature we address the problem of current conservation. The formalism of thermo field dynamics is used to derive a conserved and thermodynamically consistent physical current operator. Consequences for the calculation of photon emission rates from a hot plasma are considered briefly.
7 pages, revtex, no figures, fully available at ftp://tpri6c.gsi.de/pub/phenning/h95curc/ and get h95curc.*