Factorization of finite temperature graphs in thermal QED

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.

4 pages

References in corpus (2)

• Thermal Operator Representation of Finite Temperature Graphs II
• Thermal Operator Representation of Finite-Temperature Amplitudes in the Presence of Chemical Potential

Cited by in corpus (5)

• Hard thermal effective actions in the Schwinger formulation
• Forward scattering amplitudes and the thermal operator representation
• Thermal Operator and Cutting Rules at Finite Temperature and Chemical Potential
• Hard thermal effective action in QCD through the thermal operator
• Thermal Operator and Dispersion Relation in QED at Finite Temperature and Chemical Potential