@article{c8b2e4a8632e4b1cbc30f53699948ad1,
title = "Quantum Backaction on Kg-Scale Mirrors: Observation of Radiation Pressure Noise in the Advanced Virgo Detector",
abstract = "The quantum radiation pressure and the quantum shot noise in laser-interferometric gravitational wave detectors constitute a macroscopic manifestation of the Heisenberg inequality. If quantum shot noise can be easily observed, the observation of quantum radiation pressure noise has been elusive, so far, due to the technical noise competing with quantum effects. Here, we discuss the evidence of quantum radiation pressure noise in the Advanced Virgo gravitational wave detector. In our experiment, we inject squeezed vacuum states of light into the interferometer in order to manipulate the quantum back action on the 42 kg mirrors and observe the corresponding quantum noise driven displacement at frequencies between 30 and 70 Hz. The experimental data, obtained in various interferometer configurations, is tested against the Advanced Virgo detector quantum noise model which confirmed the measured magnitude of quantum radiation pressure noise.",
keywords = "squeezed-light, SQUEEZED-LIGHT",
author = "F. Acernese and M. Agathos and L. Aiello and A. Ain and A. Allocca and A. Amato and S. Ansoldi and S. Antier and M. Arene and N. Arnaud and S. Ascenzi and P. Astone and F. Aubin and S. Babak and F. Badaracco and M.K.M. Bader and S. Bagnasco and J. Baird and G. Ballardin and G. Baltus and C. Barbieri and P. Barneo and F. Barone and M. Barsuglia and D. Barta and A. Basti and M. Bawaj and M. Bazzan and M. Bejger and I. Belahcene and S. Bernuzzi and D. Bersanetti and A. Bertolini and M. Bischi and M. Bitossi and M.A. Bizouard and O. Blanch and F. Bobba and M. Boer and G. Bogaert and M. Boldrini and F. Bondu and R. Bonnand and B.A. Boom and V. Boschi and V. Boudart and Y. Bouffanais and A. Bozzi and C. Bradaschia and M. Branchesi and {Virgo Collaboration} and Gideon Koekoek and {van den Brand}, Johannes",
note = "Funding Information: The authors gratefully acknowledge the support of the Max Planck Society, Leibniz Universit{\"a}t Hannover, and Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through Grant No. VA 1031/1-1 and Germany{\textquoteright}s Excellence Strategy Grant No. EXC-2123 QuantumFrontiers—390837967 for the construction, installation, and operation of the squeezed light source. The authors gratefully acknowledge the Italian Istituto Nazionale di Fisica Nucleare (INFN), the French Centre National de la Recherche Scientifique (CNRS), and the Netherlands Organization for Scientific Research, for the construction and operation of the Virgo detector and the creation and support of the EGO consortium. The authors also gratefully acknowledge research support from these agencies as well as by the Spanish Agencia Estatal de Investigaci{\'o}n, the Consellera d{\textquoteright}Innovaci{\'o}, Universitats, Ci{\`e}ncia i Societat Digital de la Generalitat Valenciana and the CERCA Programme Generalitat de Catalunya, Spain, the National Science Centre of Poland, the European Commission, the Hungarian Scientific Research Fund (OTKA), the French Lyon Institute of Origins (LIO), the Belgian Fonds de la Recherche Scientifique (FRS-FNRS), Actions de Recherche Concertes (ARC), and Fonds Wetenschappelijk Onderzoek Vlaanderen (FWO), Belgium. Finally the authors kindly thank S. Danilishin for useful discussions on the quantum noise model of the interferometer. Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society.",
year = "2020",
month = sep,
day = "22",
doi = "10.1103/PhysRevLett.125.131101",
language = "English",
volume = "125",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "13",
}