Lorentz-violating electrodynamics and the cosmic microwave background

Abstract

Possible Lorentz-violating effects in the cosmic microwave background are studied. We provide a systematic classification of renormalizable and nonrenormalizable operators for Lorentz violation in electrodynamics and use polarimetric observations to search for the associated violations.

4 pages two-column REVTeX, accepted in Physical Review Letters

References in corpus (3)

• Polarization Observations with the Cosmic Background Imager
• Test of Lorentz Invariance in Electrodynamics Using Rotating Cryogenic Sapphire Microwave Oscillators
• Spectral Dependence of CMB Polarization and Parity

Cited by in corpus (5)

• Spontaneous Lorentz and Diffeomorphism Violation, Massive Modes, and Gravity
• Constraints on CPT violation from WMAP three year polarization data: a wavelet analysis
• One-Loop Renormalization of QCD with Lorentz Violation
• Limits on Neutron Lorentz Violation from the Stability of Primary Cosmic Ray Protons
• Effective Lagrangian at Cubic Order in Electromagnetic Fields and Vacuum Birefringence