@article{065bbaeea7be465ca46ee57c461bdedf,
title = "Increasing the Astrophysical Reach of the Advanced Virgo Detector via the Application of Squeezed Vacuum States of Light",
abstract = "Current interferometric gravitational-wave detectors are limited by quantum noise over a wide range of their measurement bandwidth. One method to overcome the quantum limit is the injection of squeezed vacuum states of light into the interferometer's dark port. Here, we report on the successful application of this quantum technology to improve the shot noise limited sensitivity of the Advanced Virgo gravitational-wave detector. A sensitivity enhancement of up to 3.2 ±0.1 dB beyond the shot noise limit is achieved. This nonclassical improvement corresponds to a 5{\%}-8{\%} increase of the binary neutron star horizon. The squeezing injection was fully automated and over the first 5 months of the third joint LIGO-Virgo observation run O3 squeezing was applied for more than 99{\%} of the science time. During this period several gravitational-wave candidates have been recorded.",
author = "LIGO/Virgo and F. Acernese and M. Agathos and L. Aiello and A. Allocca and A. Amato and S. Ansoldi and S. Antier and M. Ar{\`e}ne and N. Arnaud and S. Ascenzi and P. Astone and F. Aubin and S. Babak and P. Bacon and F. Badaracco and Bader, {M. K. M.} and J. Baird and F. Baldaccini 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 Bizouard, {M. A.} and F. Bobba and M. Boer and G. Bogaert and F. Bondu and R. Bonnand and Boom, {B. A.} and V. Boschi and Y. Bouffanais and A. Bozzi and C. Bradaschia and M. Branchesi and S. Clesse and J.-D. Fournier and C. Nguyen",
year = "2019",
month = "12",
day = "5",
doi = "10.1103/PhysRevLett.123.231108",
language = "English",
volume = "123",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "23",
}