We present a new analysis of a recent Michelson-Morley experiment in the photon sector of the Standard-Model Extension (SME). Compared to previous analyses, we extend it to include isotropic deviations of the vacuum speed of light from c, as described by the SME coefficient ktr, in addition to the usual direction-dependent anisotropies in the speed of light. This represents the first constraint on ktr reported by a Michelson-Morley experiment and the first analysis of a single experiment to simultaneously set limits on all nine nonbirefringent terms in the photon sector of the SME.
|Title of host publication||Proceedings of the 5th Meeting on CPT and Lorentz Symmetry, (CPT 10) 2010|
|Editors||V. Alan Kostelecky|
|Place of Publication||Bloomington, IN; United States|
|Publisher||World Scientific Publishing|
|Number of pages||5|
|ISBN (Electronic)||9789814462662, 9789814327688|
|Publication status||Published - 2011|
|Event||5th Meeting on CPT and Lorentz Symmetry - Bloomington, United States|
Duration: 28 Jun 2010 → 2 Jul 2010
|Conference||5th Meeting on CPT and Lorentz Symmetry|
|Period||28/06/10 → 2/07/10|
Stanwix, P. L., Parker, S. R., Tobar, M. E., Hohensee, M. A. A., Phillips, D. F. F., & Walsworth, R. L. L. (2011). Cavity constraints on isotropic shift and anisotropies of the speed of light. In V. A. Kostelecky (Ed.), Proceedings of the 5th Meeting on CPT and Lorentz Symmetry, (CPT 10) 2010 (Vol. 1, pp. 133-137). Bloomington, IN; United States: World Scientific Publishing.