@article{3698b9eb7b0b445ebc84cd3724b31df1,
title = "Probing fundamental physics with gravitational waves: The next generation",
abstract = "Gravitational wave observations of compact binary mergers are already providing stringent tests of general relativity and constraints on modified gravity. Ground-based interferometric detectors will soon reach design sensitivity, and they will be followed by third-generation upgrades, possibly operating in conjunction with space-based detectors. How will these improvements affect our ability to investigate fundamental physics with gravitational waves? The answer depends on the timeline for the sensitivity upgrades of the instruments, but also on astrophysical compact binary population uncertainties, which determine the number and signal-to-noise ratio of the observed sources. We consider several scenarios for the proposed timeline of detector upgrades and various astrophysical population models. Using a stacked Fisher matrix analysis of binary black hole merger observations, we thoroughly investigate future theory-agnostic bounds on modifications of general relativity as well as bounds on specific theories. For theory-agnostic bounds, we find that ground-based observations of stellar-mass black holes and LISA observations of massive black holes can each lead to improvements of 2-4 orders of magnitude with respect to present gravitational wave constraints, while multiband observations can yield improvements of 1-6 orders of magnitude. We also clarify how the relation between theory-agnostic and theory-specific bounds depends on the source properties.",
author = "Perkins, {Scott E.} and Nicol{\'a}s Yunes and Emanuele Berti",
note = "Funding Information: We thank Vishal Baibhav, Davide Gerosa, Gabriela Gonzlez, Bangalore Sathyaprakash, Sashwat Tanay, and Kaze Wong for many useful discussions on various aspects of this work. N.Y. acknowledges support from NSF Grants No. PHY-1759615, No. PHY-1949838, and NASA ATP Grant No. 17-ATP17-0225. E.B. is supported by NSF Grants No. PHY-1912550 and No. AST-2006538, NASA ATP Grants No. 17-ATP17-0225 and No. 19-ATP19-0051, and NSF-XSEDE Grant No. PHY-090003. This work has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Skodowska-Curie Grant Agreement No. 690904. The authors would like to acknowledge networking support by the GWverse COST Action CA16104, Black holes, gravitational waves and fundamental physics. This work made use of the Illinois Campus Cluster, a computing resource that is operated by the Illinois Campus Cluster Program (ICCP) in conjunction with the National Center for Supercomputing Applications (NCSA) and which is supported by funds from the University of Illinois at Urbana-Champaign. It also used computational resources at the Maryland Advanced Research Computing Center (MARCC). The following software libraries were used at various stages in the analysis for this work, in addition to the packages explicitly mentioned above: gsl [110], Numpy, scipy, filltex [111]. Funding Information: We thank Vishal Baibhav, Davide Gerosa, Gabriela Gonz{\'a}lez, Bangalore Sathyaprakash, Sashwat Tanay, and Kaze Wong for many useful discussions on various aspects of this work. N. Y. acknowledges support from NSF Grants No. PHY-1759615, No. PHY-1949838, and NASA ATP Grant No. 17-ATP17-0225. E. B. is supported by NSF Grants No. PHY-1912550 and No. AST-2006538, NASA ATP Grants No. 17-ATP17-0225 and No. 19-ATP19-0051, and NSF-XSEDE Grant No. PHY-090003. This work has received funding from the European Union{\textquoteright}s Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie Grant Agreement No. 690904. The authors would like to acknowledge networking support by the GWverse COST Action CA16104, “Black holes, gravitational waves and fundamental physics.” This work made use of the Illinois Campus Cluster, a computing resource that is operated by the Illinois Campus Cluster Program (ICCP) in conjunction with the National Center for Supercomputing Applications (NCSA) and which is supported by funds from the University of Illinois at Urbana-Champaign. It also used computational resources at the Maryland Advanced Research Computing Center (MARCC). The following software libraries were used at various stages in the analysis for this work, in addition to the packages explicitly mentioned above: gsl , N um p y, s ci p y, filltex . Publisher Copyright: {\textcopyright} 2021 American Physical Society.",
year = "2021",
month = feb,
day = "12",
doi = "10.1103/PhysRevD.103.044024",
language = "English (US)",
volume = "103",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "4",
}