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Gravitational-wave physics with Cosmic Explorer: Limits to low-frequency sensitivity

Hall, Evan D. and Kuns, Kevin and Smith, Joshua R. and Bai, Yuntao and Wipf, Christopher and Biscans, Sebastien and Adhikari, Rana X. and Arai, Koji and Ballmer, Stefan and Barsotti, Lisa and Chen, Yanbei and Evans, Matthew and Fritschel, Peter and Harms, Jan and Kamai, Brittany and Rollins, Jameson Graef and Shoemaker, David and Slagmolen, Bram J. J. and Weiss, Rainer and Yamamoto, Hiro (2021) Gravitational-wave physics with Cosmic Explorer: Limits to low-frequency sensitivity. Physical Review D, 103 (12). Art. No. 122004. ISSN 2470-0010. doi:10.1103/physrevd.103.122004.

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Cosmic Explorer is a next-generation ground-based gravitational-wave observatory concept, envisioned to begin operation in the 2030s and expected to be capable of observing binary neutron star and black hole mergers back to the time of the first stars. Cosmic Explorer’s sensitive band will extend below 10 Hz, where the design is predominantly limited by geophysical, thermal, and quantum noises. In this work, thermal, seismic, gravity-gradient, quantum, residual gas, scattered-light, and servo-control noises are analyzed in order to motivate facility and vacuum system design requirements, potential test mass suspensions, Newtonian noise reduction strategies, improved inertial sensors, and cryogenic control requirements. Our analysis shows that, with improved technologies, Cosmic Explorer can deliver a strain sensitivity better than 10⁻²³ Hz^(−1/2) down to 5 Hz. Our work refines and extends previous analysis of the Cosmic Explorer concept and outlines the key research areas needed to make this observatory a reality.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Hall, Evan D.0000-0001-9018-666X
Kuns, Kevin0000-0003-0630-3902
Smith, Joshua R.0000-0003-0638-9670
Biscans, Sebastien0000-0002-9635-7527
Adhikari, Rana X.0000-0002-5731-5076
Arai, Koji0000-0001-8916-8915
Ballmer, Stefan0000-0003-2306-523X
Barsotti, Lisa0000-0001-9819-2562
Chen, Yanbei0000-0002-9730-9463
Evans, Matthew0000-0001-8459-4499
Harms, Jan0000-0002-7332-9806
Kamai, Brittany0000-0001-6521-9351
Rollins, Jameson Graef0000-0002-9388-2799
Shoemaker, David0000-0002-4147-2560
Slagmolen, Bram J. J.0000-0002-2471-3828
Yamamoto, Hiro0000-0001-6919-9570
Additional Information:© 2021 American Physical Society. (Received 24 January 2021; accepted 13 May 2021; published 21 June 2021) The authors gratefully acknowledge the support of the National Science Foundation through collaborative Grants No. 1836814, No. 1836809, No. 1836734, and No. 1836702. E. D. H. is supported by the MathWorks, Inc. J. R. S. is partially supported by the Dan Black Family Trust. Y. B. is supported by the Sherman Fairchild Fellowship and by the U.S. Department of Energy, Office of Science, Office of High Energy Physics, under Award No. DE-SC0011632. B. K. is supported by the Heising-Simons Foundation. B. J. J. S. is supported through Australian Research Council (ARC) Centre of Excellence CE170100004.
Group:Walter Burke Institute for Theoretical Physics, LIGO
Funding AgencyGrant Number
Dan Black Family TrustUNSPECIFIED
Sherman Fairchild FoundationUNSPECIFIED
Department of Energy (DOE)DE-SC0011632
Heising-Simons FoundationUNSPECIFIED
Australian Research CouncilCE170100004
Issue or Number:12
Record Number:CaltechAUTHORS:20210626-225301267
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:109616
Deposited By: George Porter
Deposited On:28 Jun 2021 22:33
Last Modified:16 Nov 2021 19:37

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