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Article
Report number arXiv:1307.6219 ; CERN-PH-TH-2013-167 ; CERN-PH-TH-2013-167
Title Strong Binary Pulsar Constraints on Lorentz Violation in Gravity
Author(s) Yagi, Kent (Montana State U.) ; Blas, Diego (CERN) ; Yunes, Nicolás (Montana State U.) ; Barausse, Enrico (Paris, Inst. Astrophys.)
Publication 2014-04-24
Imprint 23 Jul 2013
Number of pages 5
Note Comments: 5 pages, 2 figures
6 pages, 2 figures; Fig. 2 updated to match the published version
In: Phys. Rev. Lett. 112 (2014) 161101
DOI 10.1103/PhysRevLett.112.161101
Subject category General Relativity and Cosmology
Abstract Binary pulsars are excellent laboratories to test the building blocks of Einstein's theory of General Relativity. One of these is Lorentz symmetry which states that physical phenomena appear the same for all inertially moving observers. We study the effect of violations of Lorentz symmetry in the orbital evolution of binary pulsars and find that it induces a much more rapid decay of the binary's orbital period due to the emission of dipolar radiation. The absence of such behavior in recent observations allows us to place the most stringent constraints on Lorentz violation in gravity, thus verifying one of the cornerstones of Einstein's theory much more accurately than any previous gravitational observation.
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 Journalen skapades 2013-07-25, och modifierades senast 2023-01-26


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