A precision test of the isotropy of the speed of light using rotating cryogenic optical cavities

2005/10/18 by S. Schiller, Schiller, S., Piergiorgio Antonini +3
Engineering · Physics and Astronomy · #Classical Physics (physics.class-ph) #Experimental and Theoretical Physics Studies #FOS: Physical sciences #Geophysics and Sensor Technology #Mechanical and Optical Resonators #Optics (physics.optics)

paper · pdf · doi:10.48550/arxiv.physics/0510169

openalex publication_date 2005/10/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A test of Lorentz invariance for electromagnetic waves was performed by comparing the resonance frequencies of two stable optical resonators as a function of orientation in space. The crystalline resonators were operated at 3.4 K in a cryostat employing a pulse-tube refrigerator. A new analysis yields the Robertson-Mansouri-Sexl theory parameter combination β-δ-1/2=(-0.6± 2.1±1.2)⋅10^-10 and one parameter of the Standard Model Extension theory, (κ_e-)^ZZ = (-2.9±2.2)⋅ 10^-14.

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