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September 5, 2025Journal of Cosmology and Astroparticle Physics

Scalar-Gauss-Bonnet gravity: infrared causality and detectability of GW observations

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Authors

WNWei NieShanghai University of Traditional Chinese MedicineLTLubin TanChina Agricultural UniversityJZJun ZhangUniversity of Electronic Science and Technology of China

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Overview

Observational analysis reveals detectable gravitational waves from binary black hole mergers, highlighting infrared causality constraints in scalar-tensor theories.

Key Points

  • Adding scalar degrees of freedom in scalar-gauss-bonnet gravity can enhance detectability of gravitational waves from black hole mergers.
  • Lower bounds on cutoff scales are imposed by requiring infrared causality, affecting the properties of hairy black holes.
  • The analysis focuses on the time delays of wave scatterings around black holes, providing insights into the nature of gravity.
  • Detectable gravitational waves may open new avenues for exploring scalar-tensor effective field theories in gravity.

Cite This Study

Nie et al. (2025) studied this question.

synapsesocial.com/papers/68bb3a3d2b87ece8dc954f9chttps://doi.org/10.1088/1475-7516/2025/08/086
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