QED effective action at finite temperature and density

1993/05/03 by Per Elmfors, Bo-Sture Skagerstam, David Persson · 7 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #hep-th

paper · pdf · doi:10.1103/physrevlett.71.480

published as Phys.Rev.Lett.71:480-483,1993 · 10 pages, Latex, NORDITA-93/35 P, Goteborg ITP 92-22

arxiv created 1993/05/03 · openalex publication_date 1993/07/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The QED effective action at finite temperature and density is calculated to all orders in an external homogeneous and time-independent magnetic field, in the weak coupling limit. The free energy, obtained explicitly, exhibits the expected de Haas--van Alphen oscillations. An effective coupling at finite temperature and density is derived in a closed form and is compared with renormalization group results.

Citations

• Black Holes, White Dwarfs, and Neutron Stars: The Physics of Compact Objects

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