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Self-Consistent Modeling of Gravitational Theories beyond General Relativity.

Ramiro Cayuso1,2, Pau Figueras3, Tiago França3

  • 1Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, Ontario N2L 2Y5, Canada.

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Summary

We developed a new method to consistently study theories beyond general relativity (GR), overcoming mathematical issues in black hole mergers. This approach extracts physical consequences from complex beyond GR theories.

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Area of Science:

  • Theoretical Physics
  • Gravitational Physics

Background:

  • Most extensions to general relativity (GR) present mathematical challenges like higher derivatives and equation character changes.
  • These pathologies complicate the study of beyond GR theories, particularly in dynamic scenarios involving black holes.

Purpose of the Study:

  • To present a novel approach for the consistent treatment of mathematical pathologies in beyond GR theories.
  • To enable the extraction of physical consequences from these challenging theoretical frameworks.

Main Methods:

  • Developing a consistent mathematical framework to handle pathologies in beyond GR theories.
  • Applying the method to analyze single and merging black hole scenarios within a specific beyond GR theory.

Main Results:

  • Demonstrated a method to overcome mathematical difficulties in studying beyond GR theories.
  • Successfully extracted physical consequences in the context of black hole dynamics.

Conclusions:

  • The presented approach offers a viable pathway for investigating complex beyond GR theories.
  • This method is crucial for advancing our understanding of gravity and black hole physics beyond Einstein's theory.