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Title: An effective formalism for testing extensions to General Relativity with gravitational waves

Journal Article · · Journal of High Energy Physics (Online)
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  1. Stanford Univ., CA (United States). Stanford Inst. for Theoretical Physics

The recent direct observation of gravitational waves (GW) from merging black holes opens up the possibility of exploring the theory of gravity in the strong regime at an unprecedented level. It is therefore interesting to explore which extensions to General Relativity (GR) could be detected. We construct an Effective Field Theory (EFT) satisfying the following requirements. It is testable with GW observations; it is consistent with other experiments, including short distance tests of GR; it agrees with widely accepted principles of physics, such as locality, causality and unitarity; and it does not involve new light degrees of freedom. The most general theory satisfying these requirements corresponds to adding to the GR Lagrangian operators constructed out of powers of the Riemann tensor, suppressed by a scale comparable to the curvature of the observed merging binaries. The presence of these operators modifies the gravitational potential between the compact objects, as well as their effective mass and current quadrupoles, ultimately correcting the waveform of the emitted GW.

Research Organization:
Stanford Univ., CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0008078
OSTI ID:
1468796
Journal Information:
Journal of High Energy Physics (Online), Vol. 2017, Issue 9; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 60 works
Citation information provided by
Web of Science

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All higher-curvature gravities as Generalized quasi-topological gravities journal November 2019
Consistency of the standard model effective field theory journal December 2019
Extreme gravity tests with gravitational waves from compact binary coalescences: (I) inspiral–merger journal April 2018
Towards the nonlinear regime in extensions to GR: assessing possible options journal April 2019
Effective field theory for gravitational radiation in scalar-tensor gravity journal May 2019
Black hole dynamics in Einstein-Maxwell-dilaton theory journal March 2018
Probing ultralight bosons with binary black holes journal February 2019
Forecasts for low spin black hole spectroscopy in Horndeski gravity journal May 2019
Black Holes in an Effective Field Theory Extension of General Relativity journal December 2018
Probing ultralight bosons with binary black holes text January 2019
Black Hole Dynamics in Einstein-Maxwell-Dilaton Theory text January 2017
Probing Ultralight Bosons with Binary Black Holes text January 2018
Towards the nonlinear regime in extensions to GR: assessing possible options text January 2018
Effective Field Theory of Black Hole Quasinormal Modes in Scalar-Tensor Theories text January 2018
Forecasts for Low Spin Black Hole Spectroscopy in Horndeski Gravity text January 2019
All higher-curvature gravities as Generalized quasi-topological gravities text January 2019
Parametrized black hole quasinormal ringdown. II. Coupled equations and quadratic corrections for nonrotating black holes text January 2019

Figures / Tables (13)