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arXiv · hep-th/0601227

Factorization of finite temperature graphs in thermal QED

Fernando T. Brandt·Ashok Das·Olivier Espinosa·Josif Frenkel·Silvana Perez
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Abstract

We extend our previous analysis of gauge and Dirac fields in the presence of a chemical potential. We consider an alternate thermal operator which relates in a simple way the Feynman graphs in QED at finite temperature and charge density to those at zero temperature but non-zero chemical potential. Several interesting features of such a factorization are discussed in the context of the thermal photon and fermion self-energies.

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Fernando T. Brandt, Ashok Das, Olivier Espinosa, Josif Frenkel, Silvana Perez. 2006-01-30. Factorization of finite temperature graphs in thermal QED. https://doi.org/10.1103/physrevd.73.067702

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