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Strong binary pulsar constraints on Lorentz violation in gravity.

Kent Yagi1, Diego Blas2, Nicolás Yunes1

  • 1Department of Physics, Montana State University, Bozeman, Montana 59717, USA.

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|May 13, 2014
PubMed
Summary
This summary is machine-generated.

Binary pulsars test Einstein's relativity. We found that Lorentz symmetry violations cause rapid orbital decay, and current observations confirm this theory with unprecedented accuracy.

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Area of Science:

  • * Astrophysics
  • * Gravitational Physics
  • * Fundamental Physics

Background:

  • * Binary pulsars serve as crucial testing grounds for Einstein's theory of general relativity.
  • * Lorentz symmetry is a fundamental principle stating that physical laws are invariant across inertial reference frames.

Purpose of the Study:

  • * To investigate the impact of Lorentz symmetry violations on the orbital evolution of binary pulsars.
  • * To establish new constraints on potential violations of Lorentz symmetry in gravitational theories.

Main Methods:

  • * Analyzing the orbital period decay of binary pulsars.
  • * Modeling the effects of dipolar radiation induced by Lorentz violation.

Main Results:

  • * Lorentz symmetry violations predict a significantly accelerated orbital period decay in binary pulsars.
  • * Observed binary pulsar data shows no evidence of this accelerated decay.

Conclusions:

  • * The absence of rapid orbital decay in binary pulsars provides the most stringent constraints to date on Lorentz violation in gravity.
  • * These findings strongly support the validity of Lorentz symmetry, a cornerstone of general relativity, with enhanced precision.