On nonlinear classical electrodynamics with an axionic term

Abstract

Recently there has been a renewed interest in axionic generalization of electrodynamics due to its application to topological insulators. A low-energy electromagnetic response of these exotic materials was proposed to be described by an axionic term in the Lagrangian. Motivated by this it is of interest to study various aspects of axionic electrodynamics and analyze the universal features of the axionic effects. Here we discuss the axionic modification of generalized electrodynamics with a Lagrangian being an arbitrary function of two electromagnetic invariants. Surprisingly, the qualitative characteristics of the major axionic effects known in the Maxwell theory happen to be independent of the exact type of the nonlinear Lagrangian and are uniquely fixed by the form of the axionic term.

10 pages; v2 Several typos are corrected; v3 title, abstract and introduction are revised

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Cited by in corpus (5)

• The axion-photon mixing in non-linear electrodynamic scenarios
• Lasing with Topological Weyl Semimetal
• Towards nonlinear axion-dilaton electrodynamics: How can axionic dark matter mimic dilaton-photon interactions?
• Parallel-plate and spherical capacitors in Born-Infeld electrostatics: An analytical study
• Dispersion Properties, Nonlinear Waves and Birefringence in Classical Nonlinear Electrodynamics