Frequency-Dependent Squeezed Vacuum Source for Broadband Quantum Noise Reduction in Advanced Gravitational-Wave Detectors

authored by: Yuhang Zhao, Naoki Aritomi, Eleonora Capocasa, Matteo Leonardi, Marc Eisenmann, Yuefan Guo, Eleonora Polini, Akihiro Tomura, Koji Arai, Yoichi Aso, Yao Chin Huang, Ray Kuang Lee, Harald Lück, Osamu Miyakawa, Pierre Prat, Ayaka Shoda, Matteo Tacca, Ryutaro Takahashi, Henning Vahlbruch, Marco Vardaro, Chien Ming Wu, Matteo Barsuglia, Raffaele Flaminio
Abstract: The astrophysical reach of current and future ground-based gravitational-wave detectors is mostly limited by quantum noise, induced by vacuum fluctuations entering the detector output port. The replacement of this ordinary vacuum field with a squeezed vacuum field has proven to be an effective strategy to mitigate such quantum noise and it is currently used in advanced detectors. However, current squeezing cannot improve the noise across the whole spectrum because of the Heisenberg uncertainty principle: when shot noise at high frequencies is reduced, radiation pressure at low frequencies is increased. A broadband quantum noise reduction is possible by using a more complex squeezing source, obtained by reflecting the squeezed vacuum off a Fabry-Perot cavity, known as filter cavity. Here we report the first demonstration of a frequency-dependent squeezed vacuum source able to reduce quantum noise of advanced gravitational-wave detectors in their whole observation bandwidth. The experiment uses a suspended 300-m-long filter cavity, similar to the one planned for KAGRA, Advanced Virgo, and Advanced LIGO, and capable of inducing a rotation of the squeezing ellipse below 100 Hz.
Organisation(s): Institute of Gravitation Physics
QuantumFrontiers
External Organisation(s): National Astronomical Observatory of Japan (NAOJ)
Graduate University for Advanced Studies
University of Tokyo
Universite de Savoie
National Institute for Subatomic Physics (Nikhef)
University of Electro-Communications
California Institute of Caltech (Caltech)
National Tsing Hua University
Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
Observatoire de Paris (OBSPARIS)
University of Amsterdam
University of Padova
Type: Article
Journal: Physical review letters
Volume: 124
ISSN: 0031-9007
Publication date: 01.05.2020
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1103/PhysRevLett.124.171101 (Access: Open)
https://doi.org/10.1103/PhysRevLett.124.171101 (Access: Closed)

BibTeX

@article{eb1c8de14de74abfa58420f3781c8c7d,
title = "Frequency-Dependent Squeezed Vacuum Source for Broadband Quantum Noise Reduction in Advanced Gravitational-Wave Detectors",
abstract = "The astrophysical reach of current and future ground-based gravitational-wave detectors is mostly limited by quantum noise, induced by vacuum fluctuations entering the detector output port. The replacement of this ordinary vacuum field with a squeezed vacuum field has proven to be an effective strategy to mitigate such quantum noise and it is currently used in advanced detectors. However, current squeezing cannot improve the noise across the whole spectrum because of the Heisenberg uncertainty principle: when shot noise at high frequencies is reduced, radiation pressure at low frequencies is increased. A broadband quantum noise reduction is possible by using a more complex squeezing source, obtained by reflecting the squeezed vacuum off a Fabry-Perot cavity, known as filter cavity. Here we report the first demonstration of a frequency-dependent squeezed vacuum source able to reduce quantum noise of advanced gravitational-wave detectors in their whole observation bandwidth. The experiment uses a suspended 300-m-long filter cavity, similar to the one planned for KAGRA, Advanced Virgo, and Advanced LIGO, and capable of inducing a rotation of the squeezing ellipse below 100 Hz.",
author = "Yuhang Zhao and Naoki Aritomi and Eleonora Capocasa and Matteo Leonardi and Marc Eisenmann and Yuefan Guo and Eleonora Polini and Akihiro Tomura and Koji Arai and Yoichi Aso and Huang, {Yao Chin} and Lee, {Ray Kuang} and Harald L{\"u}ck and Osamu Miyakawa and Pierre Prat and Ayaka Shoda and Matteo Tacca and Ryutaro Takahashi and Henning Vahlbruch and Marco Vardaro and Wu, {Chien Ming} and Matteo Barsuglia and Raffaele Flaminio",
note = "Funding information: We thank R. Schnabel, D. Tatsumi, E. Schreiber, L. Pinard, K. Somiya, J. Degallaix, S. R. Wu, Y. Enomoto, L. Trozzo, S. Zeidler, M. Marchi{\`o}, N. Hirata, I. Fiori, P. Ruggi, F. Paoletti, C. De Rossi, T. Akutsu, T. Tomaru, E. Majorana, K. Izumi, M. Mantovani, and J. Baird for the useful contributions and discussions. We thank S. Oshino, T. Yamamoto, and Y. Fujii for the help with the digital control system. We thank also the Advanced Technology Center (ATC) of NAOJ for the support. This work was supported by the JSPS Grant-in-Aid for Scientific Research (Grants No. 15H02095 and No. 18H01235), the JSPS Core-to-Core Program, and the EU Horizon 2020 Research and Innovation Programme under the Marie Sklodowska-Curie Grant Agreement No. 734303. N. A. was supported by JSPS Grant-in-Aid for Scientific Research (Grants No. 18H01224 and No. 18K18763) and JST CREST (Grant No. JPMJCR1873).",
year = "2020",
month = may,
day = "1",
doi = "10.1103/PhysRevLett.124.171101",
language = "English",
volume = "124",
journal = "Physical review letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "17",
}