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arXiv · 2211.00314

Displacement-noise-free interferometeric gravitational-wave detector using unidirectional neutrons with four speeds

Shoki Iwaguchi·Atsushi Nishizawa·Yanbei Chen·Yuki Kawasaki·Tomohiro Ishikawa·Masaaki Kitaguchi·Yutaka Yamagata·Bin Wu·Ryuma Shimizu·Kurumi Umemura·Kenji Tsuji·Hirohiko Shimizu·Yuta Michimura·Seiji Kawamura
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Abstract

For further gravitational wave (GW) detections, it is significant to invent a technique to reduce all kinds of mirror displacement noise dominant at low frequencies for ground-based detectors. The neutron displacement-noise-free interferometer (DFI) is one of the tools to reduce all the mirror displacement noise at lower frequencies. In this paper, we describe a further simplified configuration of a neutron DFI in terms of neutron incidence direction. In the new configuration, neutrons enter the interferometer with unidirectional incidence at four speeds as opposed to two bidirectional incidences of opposite directions at two speeds as reported previously. This simplification of the neutron DFI is significant for proof-of-principle experiments.

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Shoki Iwaguchi, Atsushi Nishizawa, Yanbei Chen, Yuki Kawasaki, Tomohiro Ishikawa, Masaaki Kitaguchi, Yutaka Yamagata, Bin Wu, Ryuma Shimizu, Kurumi Umemura, Kenji Tsuji, Hirohiko Shimizu, Yuta Michimura, Seiji Kawamura. 2022-11-01. Displacement-noise-free interferometeric gravitational-wave detector using unidirectional neutrons with four speeds. https://doi.org/10.1016/j.physleta.2022.128581

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