Rotating Odd-Parity Lorentz Invariance Test in Electrodynamics

Abstract

We report the first operation of a rotating odd-parity Lorentz Invariance test in electrodynamics using a microwave Mach-Zehnder interferometer with permeable material in one arm. The experiment sets a direct bound to ${\kappa }_{tr}$ of $-0.3\pm 3\times 10^{-7}$. Using new power recycled waveguide interferometer techniques (with the highest spectral resolution ever achieved of $2\times 10^{-11}rad/\sqrt{Hz}$) we show an improvement of several orders of magnitude is attainable in the future.