New methods of testing Lorentz violation in electrodynamics

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  • 1 August 2004
Abstract
We investigate experiments that are sensitive to the scalar and parity-odd coefficients for Lorentz violation in the photon sector of the Standard Model Extension (SME). Of the classic tests of special relativity, Ives-Stilwell (IS) experiments are shown to be sensitive to the scalar coefficient, but at only parts in 10^4. We then propose asymmetric Mach-Zehnder interferometers with different electromagnetic properties in the two arms. A recycling technique based on an travelling wave resonator is also proposed to improve the sensitivity. Based on these proposals we estimate that with present technology, measurements of the scalar and parity odd coefficients should be possible at parts in 10^11 and 10^15 respectively.

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