Buonanno, Alessandra and Chen, Yanbei (2001) Optical noise correlations and beating the standard quantum limit in advanced gravitational-wave detectors. Classical and Quantum Gravity, 18 (15). L95-L101. ISSN 0264-9381. doi:10.1088/0264-9381/18/15/102. https://resolver.caltech.edu/CaltechAUTHORS:20140911-111234690
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Abstract
The uncertainty principle, applied naively to the test masses of a laser-interferometer gravitational-wave detector, produces a standard quantum limit (SQL) on the interferometer's sensitivity. It has long been thought that beating this SQL would require a radical redesign of interferometers. However, we show that LIGO-II interferometers, currently planned for 2006, can beat the SQL by as much as a factor two over a bandwidth Deltaf similar to f, if their thermal noise can be pushed low enough. This is due to dynamical correlations between photon shot noise and radiation-pressure noise, produced by the LIGO-II signal-recycling mirror.
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| Additional Information: | © 2001 IOP Publishing Ltd. Received 29 May 2001. Published 18 July 2001. The authors thank K S Thorne for having introduced us to QND theory, for his constant encouragement and for very fruitful discussions and comments, and V B Braginsky, F Ya Khalili, Y Levin and K A Strain for very helpful discussions and comments. This research was supported in part by NSF grant PHY-9900776 and for AB also by the Richard C Tolman Fellowship. | |||||||||
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| Subject Keywords: | PACS: 04.80.Nn Gravitational wave detectors and experiments, 07.60.Ly Interferometers, 05.40.Ca Noise. MCS: 83C35 Gravitational waves. Instrumentation and measurement ; Gravitation and cosmology ;Statistical physics and nonlinear systems | |||||||||
| Issue or Number: | 15 | |||||||||
| DOI: | 10.1088/0264-9381/18/15/102 | |||||||||
| Record Number: | CaltechAUTHORS:20140911-111234690 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140911-111234690 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 49591 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Katherine Johnson | |||||||||
| Deposited On: | 11 Sep 2014 18:31 | |||||||||
| Last Modified: | 10 Nov 2021 18:46 |
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