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Strong Binary Pulsar Constraints on Lorentz Violation in Gravity

Research output: Contribution to journalArticle

Kent Yagi, Diego Blas, Nicolás Yunes, Enrico Barausse

Original languageEnglish
Pages (from-to)161101
Number of pages1
Journalprl
Volume112
Early online date24 Apr 2014
DOIs
Publication statusPublished - 25 Apr 2014

King's Authors

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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