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Sagnac-type neutron displacement-noise-free interferometeric gravitational-wave detector

https://doi.org/10.1088/1361-6382/ad42fa

Kawasaki, Yuki; Iwaguchi, Shoki; Ishikawa, Tomohiro; Nishizawa, Atsushi; Kitaguchi, Masaaki; Yamagata, Yutaka; Chen, Yanbei; Wu, Bin; Shimizu, Ryuma; Umemura, Kurumi; et al (May 2024, Classical and Quantum Gravity)

Abstract The detection of low-frequency gravitational waves on Earth requires the reduction of displacement noise, which dominates the low-frequency band. One method to cancel test mass displacement noise is a neutron displacement-noise-free interferometer (DFI). This paper proposes a new neutron DFI configuration, a Sagnac-type neutron DFI, which uses a Sagnac interferometer in place of the Mach–Zehnder interferometer. We demonstrate that a sensitivity of the Sagnac-type neutron DFI is higher than that of a conventional neutron DFI with the same interferometer scale. This configuration is particularly significant for neutron DFIs with limited space for construction and limited flux from available neutron sources.
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Displacement-noise-free interferometeric gravitational-wave detector using unidirectional neutrons with four speeds

https://doi.org/10.1016/j.physleta.2022.128581

Iwaguchi, Shoki; Nishizawa, Atsushi; Chen, Yanbei; Kawasaki, Yuki; Ishikawa, Tomohiro; Kitaguchi, Masaaki; Yamagata, Yutaka; Wu, Bin; Shimizu, Ryuma; Umemura, Kurumi; et al (January 2023, Physics Letters A)

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Displacement-noise-free neutron interferometer for gravitational wave detection using a single Mach-Zehnder configuration

https://doi.org/10.1016/j.physleta.2022.128150

Iwaguchi, Shoki; Nishizawa, Atsushi; Chen, Yanbei; Kawasaki, Yuki; Kitaguchi, Masaaki; Morimoto, Taigen; Ishikawa, Tomohiro; Wu, Bin; Watanabe, Izumi; Shimizu, Ryuma; et al (July 2022, Physics Letters A)

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Neutron displacement noise-free interferometer for gravitational-wave detection

https://doi.org/10.1103/PhysRevD.105.124017

Nishizawa, Atsushi; Iwaguchi, Shoki; Chen, Yanbei; Morimoto, Taigen; Ishikawa, Tomohiro; Wu, Bin; Watanabe, Izumi; Kawasaki, Yuki; Shimizu, Ryuma; Shimizu, Hirohiko; et al (June 2022, Physical Review D)

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