Optical noise correlations and beating the standard quantum limit in advanced gravitational-wave detectors

被引：44
|
作者：
Buonanno, A [1 ]
Chen, YB [1 ]
机构：
[1] CALTECH, Theoret Astrophys & Relat Grp, Pasadena, CA 91125 USA
来源：
CLASSICAL AND QUANTUM GRAVITY | 2001年 / 18卷 / 15期
关键词：
D O I：
10.1088/0264-9381/18/15/102
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
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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页码：L95 / L101
页数：7
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