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Increasing the Astrophysical Reach of the Advanced Virgo Detector via the Application of Squeezed Vacuum States of Light

Acernese F.
•
Agathos M.
•
Aiello L.
altro
Danzmann K.
2019
  • journal article

Periodico
PHYSICAL REVIEW LETTERS
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.
DOI
10.1103/PhysRevLett.123.231108
WOS
WOS:000501493600002
Archivio
http://hdl.handle.net/20.500.11767/115439
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85076723380
Diritti
open access
Soggetti
  • Settore FIS/05 - Astr...

Scopus© citazioni
140
Data di acquisizione
Jun 2, 2022
Vedi dettagli
Web of Science© citazioni
202
Data di acquisizione
Mar 14, 2024
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