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

1995/07/25 by Vadim Zeitlin
Physics and Astronomy · #hep-ph #cond-mat

paper · pdf

published as J.Exp.Theor.Phys. 82 (1996) 79-84; Zh.Eksp.Teor.Fiz. 109 (1996) 151-161 · 12 pages, LaTeX, no figures

arxiv created 1995/07/25 · arxiv updated 2009/11/30

Abstract

A 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.

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