Effective Lagrangian of Thermal QED with External Magnetic Field and the Static Limit of the Polarization Operator

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45643A low-temperature expansion of QED one-loop effective Lagrangian valid for a wide range of parameters is presented in a form of finite sums of elementary functions. Starting from the effective action components of the one-loop polarization operator responsible for Hall conductivity and Debye screening are obtained. It is shown that in a strong background magnetic field the Debye radius depends on spatial direction.12 pages, LaTeX, no figuresHigh Energy Physics - PhenomenologyCondensed MatterEffective Lagrangian of Thermal QED with External Magnetic Field and the Static Limit of the Polarization Operatortext