Improving cosmological reach of a gravitational wave observatory using Deep Loop Shaping

著者: Jonas Buchli, Brendan Tracey, T. Andrić, Christopher Wipf, Yu Him Justin Chiu, Matthias Lochbrunner, Craig Donner, Yu Him Justin Chiu, J. Harms, Iain Barr, Roland Hafner, Andrea Huber, Abbas Abdolmaleki, Charles Beattie, Jan Harms, Serkan Cabi, Jonas Degrave, Yuzhu Dong, Leslie Fritz, Anchal Gupta, Oliver Groth, Sandy H. Huang, Tamara Norman, Hannah Openshaw, Leslie Fritz, G. Thornton, George van den Driessche, Markus Wulfmeier, Pushmeet Kohli, Martin Riedmiller, Jameson Rollins, R. Abbott, I. Abouelfettouh, R. X. Adhikari, A. Ananyeva, S. Appert, S. K. Apple, Koji Arai, N. Aritomi, S. M. Aston, M. Ball, S. Ballmer, D. Barker, L. Barsotti, B. K. Berger, J. Betzwieser, D. Bhattacharjee, G. Billingsley, S. Biscans, C. D. Blair, N. Bode, E. Bonilla, V. Bossilkov, A. Branch, A. F. Brooks, D. D. Brown, Jennifer Bryant, C. Cahillane, Hongmin Cao, E. Capote, F. Clara, James D. Collins, C. M. Compton, R. Cottingham, D. C. Coyne, R. K. Crouch, J. Csizmazia, A. Cumming, L. P. Dartez, D. Davis, N. Demos, E. Dohmen, J. C. Driggers, S. E. Dwyer, A. Effer, A. Ejlli, T. Etzel, Michael N. Evans, J. Feicht, R. Frey, W. Frischhertz, P. Fritschel, V. V. Frolov, P. Fritschel, P. Fulda, M. Fyffe, D. Ganapathy, B. Gateley, T. Gayer, J. A. Giaime, K. D. Giardina, J. Glanzer, E. Goetz, R. Goetz, A. W. Jones, S. Gras, R. Gray, D. Griffith, H. Grote, T. Guidry, J. Gurs, 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, Weitao Jia, D. H. P. Jones, H. B. Kabagöz, S. Karat, S. Karki, M. Kasprzack, K. Kawabe, N. Kijbunchoo, Peter King, J. S. Kissel, K. Komori, A. Kontos, Rahul Kumar, K. Kuns, M. Landry, B. Lantz, M. Laxen, K. Lee, M. Lesovsky, F. Llamas Villarreal, M. Lormand, Hudson 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, A. Mullavey, M. Nakano, T. J. N. Nelson, A. Neunzert, J. Notte, J. Oberling, T. O’Hanlon, C. Osthelder, D. J. Ottaway, H. Overmier, W. Parker, O. Patane, A. Pele, H. Pham, M. Pirello, Jorge Pullin, V. Quetschke, K. E. Ramire, Katherine M. Ransom, Juan Francisco Mandujano Reyes, J. W. Richardson, Mitchell B. 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, M. R. Todd, C. I. Torrie, G. Traylor, A. S. Ubhi, G. Vajente, J. Vanosky, A. Vecchio, P. J. Veitch, A. Vibhute, E. R. G. von Reis, J. Warner, B. Weaver, R. Weiss, C. Whittle, B. Willke, C. C. Wipf, J. L. Wright, V. A. Xu, Kazuhiro Yamamoto, L. Zhang, M. E. Zucker, C. C. Wipf, C. C. Wipf, J. L. Wright, V. A. Xu, Kazuhiro Yamamoto, L. Zhang, M. E. Zucker - Science 2025 被引用: 6

Improved low-frequency sensitivity of gravitational wave observatories would unlock study of intermediate-mass black hole mergers and binary black hole eccentricity and provide early warnings for multimessenger observations of binary neutron star mergers. Today's mirror stabilization control injects harmful noise, constituting a major obstacle to sensitivity improvements. We eliminated this noise through Deep Loop Shaping, a reinforcement learning method using frequency domain rewards. We proved our methodology on the LIGO Livingston Observatory (LLO). Our controller reduced control noise in the 10- to 30-hertz band by over 30x and up to 100x in subbands, surpassing the design goal motivated by the quantum limit. These results highlight the potential of Deep Loop Shaping to improve current and future gravitational wave observatories and, more broadly, instrumentation and control systems.