Lorentz-violating electrodynamics and the cosmic microwave background.
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.
Kostelecký
V Alan
VA
Physics Department, Indiana University, Bloomington, Indiana 47405, USA.
Mewes
Matthew
M