@article{0e266a5cef2f4ed9aa944945a782bc13,
title = "Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit",
abstract = "The Heisenberg uncertainty principle dictates that the position and momentum of an object cannot be simultaneously measured with arbitrary precision, giving rise to an apparent limitation known as the standard quantum limit (SQL). Gravitational-wave detectors use photons to continuously measure the positions of freely falling mirrors and so are affected by the SQL. We investigated the performance of the Laser Interferometer Gravitational-Wave Observatory (LIGO) after the experimental realization of frequency-dependent squeezing designed to surpass the SQL. For the LIGO Livingston detector, we found that the upgrade reduces quantum noise below the SQL by a maximum of three decibels between 35 and 75 hertz while achieving a broadband sensitivity improvement, increasing the overall detector sensitivity during astrophysical observations.",
author = "{members of the LIGO Scientific Collaboration†} and Wenxuan Jia and Victoria Xu and Kevin Kuns and Masayuki Nakano and Lisa Barsotti and Matthew Evans and Nergis Mavalvala and R. Abbott and I. Abouelfettouh and Adhikari, {R. X.} and A. Ananyeva and S. Appert and K. Arai and N. Aritomi and Aston, {S. M.} and M. Ball and Ballmer, {S. W.} and D. Barker and Berger, {B. K.} and J. Betzwieser and D. Bhattacharjee and G. Billingsley and N. Bode and E. Bonilla and V. Bossilkov and A. Branch and Brooks, {A. F.} and Brown, {D. D.} and J. Bryant and C. Cahillane and H. Cao and E. Capote and Y. Chen and F. Clara and J. Collins and Compton, {C. M.} and R. Cottingham and Coyne, {D. C.} and R. Crouch and J. Csizmazia and Cullen, {T. J.} and Dartez, {L. P.} and N. Demos and E. Dohmen and Driggers, {J. C.} and Dwyer, {S. E.} and A. Effler and A. Ejlli and T. Etzel and J. Feicht and R. Frey and W. Frischhertz and P. Fritschel and Frolov, {V. V.} and P. Fulda and M. Fyffe and D. Ganapathy and B. Gateley and Giaime, {J. A.} and Giardina, {K. D.} and J. Glanzer and E. Goetz and Goodwin-Jones, {A. W.} and S. Gras and C. Gray and D. Griffith and H. Grote and T. Guidry and Hall, {E. D.} and J. Hanks and J. Hanson and Heintze, {M. C.} and Helmling-Cornell, {A. F.} and Huang, {H. Y.} and Y. Inoue and James, {A. L.} and A. Jennings and S. Karat and M. Kasprzack and K. Kawabe and N. Kijbunchoo and Kissel, {J. S.} and A. Kontos and R. Kumar and M. Landry and B. Lantz and M. Laxen and K. Lee and M. Lesovsky and F. Llamas and M. Lormand and Loughlin, {H. A.} and R. Macas and M. MacInnis and Makarem, {C. N.} and B. Mannix and Mansell, {G. L.} and Martin, {R. M.} and N. Maxwell and G. McCarrol and R. McCarthy and McClelland, {D. E.} and S. McCormick and L. McCuller and T. McRae and F. Mera and Merilh, {E. L.} and F. Meylahn and R. Mittleman and D. Moraru and G. Moreno and M. Mould and A. Mullavey and Nelson, {T. J.N.} and A. Neunzert and J. Oberling and T. O'Hanlon and C. Osthelder and Ottaway, {D. J.} and H. Overmier and W. Parker and A. Pele and H. Pham and M. Pirello and V. Quetschke and Ramirez, {K. E.} and J. Reyes and Richardson, {J. W.} and M. Robinson and Rollins, {J. G.} and Romie, {J. H.} and Ross, {M. P.} and T. Sadecki and A. Sanchez and Sanchez, {E. J.} and Sanchez, {L. E.} and Savage, {R. L.} and D. Schaetzl and Schiworski, {M. G.} and R. Schnabel and Schofield, {R. M.S.} and E. Schwartz and D. Sellers and T. Shaffer and Short, {R. W.} and D. Sigg and Slagmolen, {B. J.J.} and S. Soni and L. Sun and Tanner, {D. B.} and M. Thomas and P. Thomas and Thorne, {K. A.} and Torrie, {C. I.} and G. Traylor and G. Vajente and J. Vanosky and A. Vecchio and Veitch, {P. J.} and Vibhute, {A. M.} and {von Reis}, {E. R.G.} and J. Warner and B. Weaver and R. Weiss and C. Whittle and B. Willke and Wipf, {C. C.} and H. Yamamoto and H. Yu and L. Zhang and Zucker, {M. E.}",
year = "2024",
month = sep,
day = "20",
doi = "10.1126/science.ado8069",
language = "English",
volume = "385",
pages = "1318--1321",
journal = "Science (New York, N.Y.)",
issn = "0036-8075",
publisher = "AMER ASSOC ADVANCEMENT SCIENCE",
number = "6715",
}