Gravitational birefringence of light in Robertson-Walker cosmologies

Autor:	Duval, C., Schucker, T.
Rok vydání:	2016
Předmět:	General Relativity and Quantum Cosmology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Theory Physics - Optics
Zdroj:	Phys. Rev. D 96, 043517 (2017)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.96.043517
Popis:	The spacetime evolution of massless spinning particles in a Robertson-Walker background is derived using the deterministic system of equations of motion due to Papapetrou, Souriau and Saturnini. A numerical integration of this system of differential equations in the case of the standard model of cosmology is performed. The deviation of the photon worldlines from the null geodesics is of the order of the wavelength. Perturbative solutions are also worked out in a more general case. An experimental measurement of this deviation would test the acceleration of our expanding universe. Comment: 28 pages, 7 figures; version 2: curvature added in eq. (3.11) and sign corrected in eq. (5.16); version 3: changed sign convention for Riemann tensor, completed proof in appendix, various clarifications added in the text
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1610.00555 Zobrazit plný text záznamu View this record from Arxiv