Axion-Electromagnetic Waves
Abstract
We extend the duality symmetry between the electric and the magnetic fields to the case in which an additional axion-like term is present, and we derive the set of Maxwell equations that preserves this symmetry. This new set of equations allows for a gauge symmetry extending the ordinary symmetry in the classical electrodynamics. We obtain explicit solutions for the new set of equations in the absence of external sources, and we discuss the implications of a new internal symmetry between the axion field and the electromagnetic gauge potential.
- Publication:
-
Modern Physics Letters A
- Pub Date:
- October 2013
- DOI:
- 10.1142/S0217732313501629
- arXiv:
- arXiv:1401.0709
- Bibcode:
- 2013MPLA...2850162V
- Keywords:
-
- Axion;
- 14.80.Va;
- 03.50.De;
- Classical electromagnetism Maxwell equations;
- Physics - Classical Physics;
- High Energy Physics - Phenomenology;
- High Energy Physics - Theory
- E-Print:
- 11pages, accepted for publication on Modern Physics Letters A 28, 35 (2013)