Strong Binary Pulsar Constraints on Lorentz Violation in Gravity

Kent Yagi, Diego Blas, Nicolás Yunes, Enrico Barausse

Research output: Contribution to journalArticlepeer-review

112 Citations (Scopus)

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.
Original languageEnglish
Article number161101
JournalPhysical Review Letters
Volume112
Early online date24 Apr 2014
DOIs
Publication statusPublished - 25 Apr 2014

Keywords

  • 04.30.-w, 04.25.Nx, 04.50.Kd, 11.30.Cp, Gravitational waves: theory, Post-Newtonian approximation, perturbation theory, related approximations, Modified theories of gravity, Lorentz and Poincare invariance, General Relativity and Quantum Cosmology, Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Phenomenology, High Energy Physics - Theory

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