Factorization of finite temperature graphs in thermal QED

2006/01/30 by F. T. Brandt, Fernando T. Brandt, Ashok Das +4 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Quantum Electrodynamics and Casimir Effect #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.73.067702

published as Phys.Rev.D73:067702,2006 · 4 pages

arxiv created 2006/01/30 · openalex publication_date 2006/03/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We extend our previous analysis of gauge and Dirac fields in the presence of a chemical potential. We consider an alternative 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 nonzero chemical potential. Several interesting features of such a factorization are discussed in the context of the thermal photon and fermion self-energies.

Citations

• Statistical-Mechanical Theory of Irreversible Processes. I. General Theory and Simple Applications to Magnetic and Conduction Problems
• Thermal operator representation of finite temperature graphs. II.

Cited by

• Effective actions at finite temperature
• Forward scattering amplitudes and the thermal operator representation