@article{ef8a6d61ffff4934a9b7c1e19b20ae81,
title = "Multiparameter Tests of General Relativity Using Multiband Gravitational-Wave Observations",
abstract = "In this Letter, we show that multiband observations of stellar-mass binary black holes by the next generation of ground-based observatories (3G) and the space-based Laser Interferometer Space Antenna (LISA) would facilitate a comprehensive test of general relativity by simultaneously measuring all the post-Newtonian coefficients. Multiband observations would measure most of the known post-Newtonian phasing coefficients to an accuracy below a few percent - 2 orders-of-magnitude better than the best bounds achievable from even {"}golden{"}binaries in the 3G or LISA bands. Such multiparameter bounds would play a pivotal role in constraining the parameter space of modified theories of gravity beyond general relativity.",
author = "Anuradha Gupta and Sayantani Datta and Shilpa Kastha and Ssohrab Borhanian and Arun, {K. G.} and Sathyaprakash, {B. S.}",
note = "Funding Information: We thank Chris Van Den Broeck, Bala Iyer, Arnab Dhani, and M. Saleem for several useful discussions. B. S. S. is supported in part by NSF Grants No. PHY-1836779, No. AST-1716394, and No. AST-1708146. S. B. is supported by NSF Grant No. PHY-1836779. K. G. A. and S. D. are partially supported by a grant from the Infosys Foundation. They also acknowledge the Swarnajayanti Grant No. DST/SJF/PSA-01/2017-18 DST-India. K. G. A acknowledges Core Research Grant No. EMR/2016/005594 of SERB. We acknowledge the use of IUCAA LDG cluster Sarathi for the computational and numerical work. Publisher Copyright: {\textcopyright} 2020 American Physical Society. ",
year = "2020",
month = nov,
day = "10",
doi = "10.1103/PhysRevLett.125.201101",
language = "English (US)",
volume = "125",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "20",
}