Abstract
This paper discusses clock-comparison experiments, which may be used to test Lorentz symmetry to an extremely high level of precision. We include a brief overview of theoretical predictions for signals of Lorentz violation in clock-comparison experiments and summarize results of experiments that have been performed to date.
Highlights
Einsteinian relativity [1] is founded on the idea that spacetime is symmetric under the Lorentz group of transformations [2]
For several years in the early 20th century, it was reasonable to wonder whether the laws of nature obey this symmetry
To date, there is no experimental evidence whatsoever that Lorentz symmetry is violated in our universe [4]
Summary
Einsteinian relativity [1] is founded on the idea that spacetime is symmetric under the Lorentz group of transformations [2]. Lorentz symmetry is rare among physical laws in that it currently appears to be perfect. Still, this is no reason to ignore the idea of Lorentz violation. The Lorentz-violating Standard-Model Extension (SME) [5,6,7] is a framework designed to accommodate all plausible types of Lorentz violation It allows systematic comparison of different experiments and predicts classes of signals that could arise if Lorentz symmetry is broken in some way.
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call