Year: 2023
Type: article
Abstract: Quantum noise imposes a fundamental limitation on the sensitivity of interferometric gravitationalwave detectors like LIGO, manifesting as shot noise and quantum radiation pressure noise.Here, we present the first realization of frequency-dependent squeezing in full-scale gravitational-wave detectors, resulting in the reduction of both shot noise and quantum radiation pressure noise, with broadband detector enhancement from tens of hertz to several kilohertz.In the LIGO Hanford detector, squeezing reduced the detector noise amplitude by a factor of 1.6 (4.0 dB) near 1 kHz; in the Livingston detector, the noise reduction was a factor of 1.9 (5.8 dB).These improvements directly impact LIGO's scientific output for high-frequency sources (e.g., binary neutron star postmerger physics).The improved lowfrequency sensitivity, which boosted the detector range by 15%-18% with respect to no squeezing, corresponds to an increase in the astrophysical detection rate of up to 65%.Frequency-dependent squeezing was enabled by the addition of a 300-meter-long filter cavity to each detector as part of the LIGO Aþ upgrade.
Source: Physical Review X
Authors: D. Ganapathy, W. Jia, M. Nakano, V. Xu, N. Aritomi, T. Cullen, N. Kijbunchoo, S. E. Dwyer, A. Mullavey, L. McCuller, R. Abbott, I. Abouelfettouh, R. X. Adhikari, A. Ananyeva, S. Appert, K. Arai, S. M. Aston, M. Ball, S. W. Ballmer, D. Barker, L. Barsotti, B. K. Berger, J. Betzwieser, D. Bhattacharjee, G. Billingsley, S. Biscans, N. Bode, E. Bonilla, V. Bossilkov, A. Branch, A. F. Brooks, D. D. Brown, J. Bryant, C. Cahillane, H. Cao, E. Capote, F. Clara, J. Collins, C. M. Compton, R. Cottingham, D. C. Coyne, R. Crouch, J. Csizmazia, L. P. Dartez, N. Demos, E. Dohmen, J. C. Driggers, A. Effler, A. Ejlli, T. Etzel, M. Evans, J. Feicht, R. Frey, W. Frischhertz, P. Fritschel, V. V. Frolov, P. Fulda, M. Fyffe, B. Gateley, J. A. Giaime, K. D. Giardina, J. Glanzer, E. Goetz, R. Goetz, A. W. Goodwin-Jones, S. Gras, C. Gray, D. Griffith, H. Grote, T. Guidry, E. D. Hall, J. Hanks, J. Hanson, M. C. Heintze, A. F. Helmling-Cornell, N. A. Holland, D. Hoyland, H. Y. Huang, Y. Inoue, A. L. James, A. Jennings, S. Karat, S. Karki, M. Kasprzack, K. Kawabe, P. J. King, J. S. Kissel, K. Komori, A. Kontos, R. Kumar, K. Kuns, M. Landry, B. Lantz, M. Laxen, K. Lee, M. Lesovsky, F. Llamas, M. Lormand, H. A. Loughlin, R. Macas, M. MacInnis, C. N. Makarem, B. Mannix, G. L. Mansell, R. M. Martin, K. Mason, F. Matichard, N. Mavalvala, N. Maxwell, G. McCarrol, R. McCarthy, D. E. McClelland, S. McCormick, T. McRae, F. Mera, E. L. Merilh, F. Meylahn, R. Mittleman, D. Moraru, G. Moreno, T. J. N. Nelson, A. Neunzert, J. Notte, J. Oberling, T. O’Hanlon, C. Osthelder, D. J. Ottaway, H. Overmier, W. Parker, A. Pele, H. Pham, M. Pirello, V. Quetschke, K. E. Ramirez, J. Reyes, J. W. Richardson, M. Robinson, J. G. Rollins, C. L. Romel, J. H. Romie, M. P. Ross, K. Ryan, T. Sadecki, A. Sanchez, E. J. Sanchez, L. E. Sanchez, R. L. Savage, D. Schaetzl, M. G. Schiworski, R. Schnabel, R. M. S. Schofield, E. Schwartz, D. Sellers, T. Shaffer, R. W. Short, D. Sigg, B. J. J. Slagmolen, C. Soike, S. Soni, V. Srivastava, L. Sun, D. B. Tanner, M. Thomas, P. Thomas, K. A. Thorne, C. I. Torrie, G. Traylor, A. S. Ubhi, G. Vajente, J. Vanosky, A. Vecchio, P. J. Veitch, A. M. Vibhute, E. R. G. von Reis, J. Warner, B. Weaver, R. Weiss, C. Whittle, B. Willke, C. C. Wipf, H. Yamamoto, L. Zhang, M. E. Zucker
Institutions: Massachusetts Institute of Technology, LIGO Scientific Collaboration, California Institute of Technology, ARC Centre of Excellence for Gravitational Wave Discovery, The University of Adelaide, University of Oregon, Syracuse University, Stanford University, Kenyon College, Leibniz University Hannover, Max Planck Institute for Gravitational Physics, University of Birmingham, University of California, Riverside, Cardiff University, University of Florida, Louisiana State University, University of British Columbia, The University of Western Australia, Vrije Universiteit Amsterdam, National Central University, Missouri University of Science and Technology, Bard College, Sungkyunkwan University, The University of Texas Rio Grande Valley, University of Portsmouth, Montclair State University, Australian National University, University of Washington, Universität Hamburg
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $4,200
Awards: G1491314150, The A+ Upgrade to Advanced LIGO, The A+ upgrade:Expanding the Advanced LIGO Horizon, Gravitational wave science at the University of Birmingham, The A+ upgrade: Expanding the Advanced LIGO Horizon, Proposal for UK Involvement in the Operation of Advanced LIGO, UK Involvement in the Operation of Advanced LIGO, G3298851804, G5957559208, Astrophysics at the University of Birmingham, Advanced LIGO Operations Support, Bringing Advanced LIGO to Design Performance and Further Sensitivity Enhancements
OpenAlex ID: W4388019583