Displacement- and Timing-Noise Free Gravitational-Wave Detection

Abstract

Motivated by a recently-invented scheme of displacement-noise-free gravitational-wave detection, we demonstrate the existence of gravitational-wave detection schemes insusceptible to both displacement and timing (laser) noises, and are thus realizable by shot-noise-limited laser interferometry. This is possible due to two reasons: first, gravitational waves and displacement disturbances contribute to light propagation times in different manners; second, for an N-detector system, the number of signal channels is of the order O(N^2), while the total number of timing- and displacement-noise channels is of the order O(N).

4 pages, 3 figures; mistake corrected

References in corpus (2)

• The Response of Test Masses to Gravitational Waves in the Coordinates of a Local Observer
• Displacement-Noise-Free Gravitational-Wave Detection

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• Development of displacement- and frequency-noise-free interferometer in 3-D configuration for gravitational wave detection
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• Displacement-noise-free gravitational-wave detection with two Fabry-Perot cavities
• Experimental demonstration of a Displacement noise Free Interferometry scheme for gravitational wave detectors showing displacement noise reduction at low frequencies