Cavity Bounds on Higher-Order Lorentz-Violating Coefficients

TL;DR

This paper uses data from a year-long Michelson-Morley resonant-cavity experiment to set the first bounds on higher-order Lorentz-violating coefficients in the Standard-Model Extension, advancing tests of fundamental symmetries.

Contribution

It provides the first experimental bounds on higher-order Lorentz-violating coefficients using resonant-cavity data.

Findings

Established new bounds on higher-order Lorentz-violating coefficients

Demonstrated the sensitivity of modern resonant-cavity experiments to fundamental symmetry violations

Extended previous tests to include nonbirefringent and nondispersive coefficients

Abstract

We determine the sensitivity of a modern Michelson-Morley resonant-cavity experiment to the higher-order nonbirefringent and nondispersive coefficients of the Lorentz-violating Standard-Model Extension. Data from a recent year-long run of the experiment is used to place the first bounds on these coefficients.