光の片道速度
31 ± 0.73 ) × 10 − 17 {\displaystyle {\tilde {\kappa }}_{e-}=\scriptstyle (-0.31\pm 0.73)\times 10^{-17}} , κ ~ o + = 0.7 ± 1 × 10 − 14 {\displaystyle {\tilde {\kappa }}_{o+}=\scriptstyle 0.7\pm 1\times 10^{-14}} , and κ ~ t r = − 0.4 ± 0.9 × 10 − 10 {\displaystyle {\tilde {\kappa }}_{tr}=\scriptstyle -0.4\pm 0.9\times 10^{-10}} . For details and sources see Modern searches for Lorentz violation#Speed of light.
However, the partially conventional character of those quantities was demonstrated by Kostelecky et al, pointing out that such variations in the speed of light can be removed by suitable coordinate transformations and field redefinitions.
“Astrophysics: Burst of support for relativity”. Nature 462 (7271): 291–292. Bibcode: 2009Natur.462..291A. doi:10.1038/462291a. PMID 19924200. 非専門家向けの内容要旨 – Nature (19 November 2009).
↑ Laurent (2011). “Constraints on Lorentz Invariance Violation using integral/IBIS observations of GRB041219A”. Physical Review D 83 (12): 121301. arXiv:1106.1068. Bibcode: 2011PhRvD..83l1301L. doi:10.1103/PhysRevD.83.121301.
1 2 3 Kostelecký, V. Alan; Mewes, Matthew (2002). “Signals for Lorentz violation in electrodynamics”. Physical Review D 66 (5): 056005. arXiv:hep-ph/0205211. Bibcode: 2002PhRvD..66e6005K. doi:10.1103/PhysRevD.66.056005.
1 2 Hohensee (2010). “Improved constraints on isotropic shift and anisotropies of the speed of light using rotating cryogenic sapphire oscillators”.