The torsion pendulum dual oscillator for low-frequency Newtonian noise detection

S. S. Y. Chua,N. A. Holland,P. W. F. Forsyth, A. Kulur Ramamohan, Y. Zhang, J. Wright,D. A. Shaddock,D. E. McClelland,B. J. J. Slagmolen

APPLIED PHYSICS LETTERS（2023）

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Abstract

We present a torsion pendulum dual oscillator sensor designed toward the direct detection of Newtonian noise. We discuss the sensitivity limitations of the system, experimental performance characterization results, and prospectives to improve performance. The sensor is being developed to contribute to the mitigation of Newtonian noise impacts in the sensitivities of next generation terrestrial gravitational-wave detectors.

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Key words

dual oscillator,noise,low-frequency

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