A New Limit on Signals of Lorentz Violation in Electrodynamics
Classical Physics
2009-07-09 v1 General Relativity and Quantum Cosmology
High Energy Physics - Experiment
High Energy Physics - Phenomenology
General Physics
Abstract
We describe the results of an experiment to test for spacetime anisotropy terms that might exist from Lorentz violations. The apparatus consists of a pair of cylindrical superconducting cavity-stabilized oscillators operating in the TM_{010} mode with one axis east-west and the other vertical. Spatial anisotropy is detected by monitoring the beat frequency at the sidereal rate and its first harmonic. We see no anisotropy to a part in 10^{13}. This puts a comparable bound on four linear combinations of parameters in the general Standard Model extension, and a weaker bound of <4 x 10^{-9} on three others.
Cite
@article{arxiv.physics/0302093,
title = {A New Limit on Signals of Lorentz Violation in Electrodynamics},
author = {J. A. Lipa and J. A. Nissen and S. Wang and D. A. Stricker and D. Avaloff},
journal= {arXiv preprint arXiv:physics/0302093},
year = {2009}
}
Comments
4 pages, 3 figures, 2 tables