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

Vadim Zeitlin
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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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Vadim Zeitlin. 1995-07-25. Effective Lagrangian of Thermal QED with External Magnetic Field and the Static Limit of the Polarization Operator. https://arxiv.org/abs/hep-ph/9507404

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