Practical speed meter designs for quantum nondemolition gravitational-wave interferometers
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چکیده
منابع مشابه
Practical speed meter designs for quantum nondemolition gravitational-wave interferometers
In the quest to develop viable designs for third-generation optical interferometric gravitational-wave detectors ~e.g., LIGO-III and EURO!, one strategy is to monitor the relative momentum or speed of the test-mass mirrors, rather than monitoring their relative position. A previous paper analyzed a straightforward but impractical design for a speed-meter interferometer that accomplishes this. T...
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According to quantum measurement theory, “speed meters” — devices that measure the momentum, or speed, of free test masses — are immune to the standard quantum limit (SQL). It is shown that a Sagnac-interferometer gravitational-wave detector is a speed meter and therefore in principle it can beat the SQL by large amounts over a wide band of frequencies. It is shown, further, that, when one igno...
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Andrew R. Wade, Kirk McKenzie, Yanbei Chen, Daniel A. Shaddock, Jong H. Chow, and David E. McClelland Centre for Gravitational Physics, Department of Quantum Science, The Australian National University, Canberra, ACT, 0200, Australia Jet Propulsion Laboratory (JPL), California Institute of Technology, 4800 Oak Grove Drive, Pasadena, California 91109, USA Theoretical Astrophysics 350-17, Califor...
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A new optical topology and signal readout strategy for a laser interferometer gravitational wave detector were proposed recently by Braginsky and Khalili. Their method is based on using a nonlinear medium inside a microwave oscillator to detect the gravitational-wave-induced spatial shift of the interferometer’s standing optical wave. This paper proposes a quantum nondemolition scheme that coul...
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A laser interferometer gravitational wave detector is, in essence, a device for monitoring a classical force (the gravitational wave) that acts on freely moving test masses (the interferometer's suspended mirrors). \Advanced" detectors, expected to operate in the LIGO/VIRGO interferometric network [1] in the middle or later part of the next decade, will be constrained by the standard quantum li...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2002
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.66.122004