A test of Lorentz invariance for electromagnetic waves was performed by comparing the resonance frequencies of two optical resonators as a function of orientation in space. In terms of the Robertson-Mansouri-Sexl theory, we obtain β-δ-1∕2=(+0.5±3±0.7)×10^-10, a tenfold improvement compared to the previous best results. We also set a first upper limit for a parameter of the standard model extension test theory, ( ̃ \~κ_e-)ZZ<2×10^-14.
No takes yet. Share an insight, caveat, or question.
Antonini et al. (2005) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: