Quantum correlation measurements in interferometric gravitational wave detectors
Martynov, D. V. and Lockerbie, N.A., LSC Instrument Authors (2017) Quantum correlation measurements in interferometric gravitational wave detectors. Physical Review A, 95 (4). 043831. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.95.043831)
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Abstract
Quantum fluctuations in the phase and amplitude quadratures of light set limitations on the sensitivity of modern optical instruments. The sensitivity of the interferometric gravitational-wave detectors, such as the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO), is limited by quantum shot noise, quantum radiation pressure noise, and a set of classical noises. We show how the quantum properties of light can be used to distinguish these noises using correlation techniques. Particularly, in the first part of the paper we show estimations of the coating thermal noise and gas phase noise, hidden below the quantum shot noise in the Advanced LIGO sensitivity curve. We also make projections on the observatory sensitivity during the next science runs. In the second part of the paper we discuss the correlation technique that reveals the quantum radiation pressure noise from the background of classical noises and shot noise. We apply this technique to the Advanced LIGO data, collected during the first science run, and experimentally estimate the quantum correlations and quantum radiation pressure noise in the interferometer.
ORCID iDs
Martynov, D. V. and Lockerbie, N.A. ORCID: https://orcid.org/0000-0002-1678-3260;-
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Item type: Article ID code: 60941 Dates: DateEvent21 April 2017Published14 February 2017AcceptedNotes: Please consult manuscript for full attribution details. Subjects: Science > Physics Department: Faculty of Science > Physics Depositing user: Pure Administrator Date deposited: 14 Jun 2017 13:08 Last modified: 03 Sep 2024 00:54 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/60941