An effective formalism for testing extensions to General Relativity with gravitational waves
Abstract
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.
 Authors:

 Stanford Univ., CA (United States). Stanford Inst. for Theoretical Physics
 Publication Date:
 Research Org.:
 Leland Stanford Junior Univ., CA (United States)
 Sponsoring Org.:
 USDOE Office of Science (SC)
 OSTI Identifier:
 1468796
 Grant/Contract Number:
 SC0008078
 Resource Type:
 Accepted Manuscript
 Journal Name:
 Journal of High Energy Physics (Online)
 Additional Journal Information:
 Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 9; Journal ID: ISSN 10298479
 Publisher:
 Springer Berlin
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTRONOMY AND ASTROPHYSICS; Effective Field Theories; Black Holes; Classical Theories of Gravity
Citation Formats
Endlich, Solomon, Gorbenko, Victor, Huang, Junwu, and Senatore, Leonardo. An effective formalism for testing extensions to General Relativity with gravitational waves. United States: N. p., 2017.
Web. doi:10.1007/JHEP09(2017)122.
Endlich, Solomon, Gorbenko, Victor, Huang, Junwu, & Senatore, Leonardo. An effective formalism for testing extensions to General Relativity with gravitational waves. United States. doi:10.1007/JHEP09(2017)122.
Endlich, Solomon, Gorbenko, Victor, Huang, Junwu, and Senatore, Leonardo. Fri .
"An effective formalism for testing extensions to General Relativity with gravitational waves". United States. doi:10.1007/JHEP09(2017)122. https://www.osti.gov/servlets/purl/1468796.
@article{osti_1468796,
title = {An effective formalism for testing extensions to General Relativity with gravitational waves},
author = {Endlich, Solomon and Gorbenko, Victor and Huang, Junwu and Senatore, Leonardo},
abstractNote = {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.},
doi = {10.1007/JHEP09(2017)122},
journal = {Journal of High Energy Physics (Online)},
number = 9,
volume = 2017,
place = {United States},
year = {2017},
month = {9}
}
Web of Science
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