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DOE OSTI · 1780590

Interferometric Constraints on Spacelike Coherent Rotational Fluctuations

Richardson, Jonathan W.·Kwon, Ohkyung·Gustafson, H. Richard·Hogan, Craig·Kamai, Brittany L.·McCuller, Lee P.·Meyer, Stephan S.·Stoughton, Chris·Tomlin, Raymond E.·Weiss, Rainer
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Abstract

Precision measurements are reported of the cross-spectrum of rotationally induced differential position displacements in a pair of colocated 39 m long, high-power Michelson interferometers. One arm of each interferometer is bent 90° near its midpoint to obtain sensitivity to rotations about an axis normal to the plane of the instrument. The instrument achieves quantum-limited sensing of spatially correlated signals in a broad frequency band extending beyond the 3.9-MHz inverse light travel time of the apparatus. For stationary signals with bandwidth Δf>10 kHz, the sensitivity to rotation-induced strain h of classical or exotic origin surpasses CSDδh

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

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Richardson, Jonathan W., Kwon, Ohkyung, Gustafson, H. Richard, Hogan, Craig, Kamai, Brittany L., McCuller, Lee P., Meyer, Stephan S., Stoughton, Chris, Tomlin, Raymond E., Weiss, Rainer. 2021-06-15. Interferometric Constraints on Spacelike Coherent Rotational Fluctuations. https://doi.org/10.1103/physrevlett.126.241301

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