Effective field theory approach to light propagation in an external magnetic field
arXiv:hep-ph/0702111 · doi:10.1140/epjc/s10052-007-0478-1
Abstract
The recent PVLAS experiment observed the rotation of polarization and the ellipticity when a linearly polarized laser beam passes through a transverse magnetic field. The phenomenon cannot be explained in the conventional QED. We attempt to accommodate the result by employing an effective theory for the electromagnetic field alone. No new particles with a mass of order the laser frequency or below are assumed. To quartic terms in the field strength, a parity-violating term appears besides the two ordinary terms. The rotation of polarization and ellipticity are computed for parity asymmetric and symmetric experimental set-ups. While rotation occurs in an ideal asymmetric case and has the same magnitude as the ellipticity, it disappears in a symmetric set-up like PVLAS. This would mean that we have to appeal to some low-mass new particles with nontrivial interactions with photons to understand the PVLAS result.
arXiv comment10 pages, no figures
References in corpus (17)
- First results from the CERN Axion Solar Telescope (CAST)
- Experimental observation of optical rotation generated in vacuum by a magnetic field
- The Need for Purely Laboratory-Based Axion-Like Particle Searches
- Polarized Light Propagating in a Magnetic Field as a Probe of Millicharged Fermions
- Compatibility of CAST search with axion-like interpretation of PVLAS results
- Resonantly Enhanced Axion-Photon Regeneration
- Evading Astrophysical Constraints on Axion-Like Particles
- Axions - Motivation, limits and searches
- On the Particle Interpretation of the PVLAS Data: Neutral versus Charged Particles
- Reconciling the CAST and PVLAS Results
- Photon Regeneration from Pseudoscalars at X-ray Laser Facilities
- Evading the astrophysical limits on light pseudoscalars
- Vacuum Birefringence in a Rotating Magnetic Field
- The rotation of magnetic field does not impact vacuum birefringence
- Shining light through the Sun
- Pair Production and Vacuum Polarization of Arbitrary Spin Particles with EDM and AMM
- Self Interacting Dark Matter in the Solar System
Cited by in corpus (5)
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- Dispersion Relations in Non-Linear Electrodynamics and the Kinematics of the Compton Effect in a Magnetic Background
- CP-Violation in Low-Energy Photon-Photon Interactions
- Dispersion and absorption effects in the linearized Euler-Heisenberg electrodynamics under an external magnetic field