2006/12/31 by Samina Masood, Samina S. Masood, Mahnaz Q. Haseeb
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1142/s0217751x08041712
published as Int.J.Mod.Phys.A23:4709-4719,2008 · 8 latex pages and 1 figure (to appear in IJMP)
arxiv created 2008/07/29 · openalex publication_date 2008/11/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the second-order corrections to vacuum polarization tensor of photons at low temperatures, i.e. T ≪ 10 10 K (T ≪ m e ). The thermal contributions to the QED coupling constant are evaluated at temperatures below the electron mass that is T < m e . Renormalization of QED at these temperatures has explicitly been checked. The electromagnetic properties of such a thermal medium are modified. Parameters like electric permittivity and magnetic permeability of such a medium are no more constant and become functions of temperature.