of Energy under contract No. DE-FG02-05ER41360. 1 J. Aasi et al. (LIGO Collaboration), Nature Photon. 7, 613 (2013). 2 T. Rotlunan and S. Boughn, Foundations of Physics 36, 1801 (2006), arXiv:gr-qc/0601043. (3 L. Grishchuk, Sov.Phys.JETP 40, 409 (1975). 4 L. M. Krauss and M. J. White, Phys.Rev.Lett. 69, 869 (1992), hep-ph/920