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Neutron displacement noise-free interferometer for gravitational-wave detection

Nishizawa, Atsushi and Iwaguchi, Shoki and Chen, Yanbei and Morimoto, Taigen and Ishikawa, Tomohiro and Wu, Bin and Watanabe, Izumi and Kawasaki, Yuki and Shimizu, Ryuma and Shimizu, Hirohiko and Kitaguchi, Masaaki and Michimura, Yuta and Kawamura, Seiji (2022) Neutron displacement noise-free interferometer for gravitational-wave detection. Physical Review D, 105 (12). Art. No. 124017. ISSN 2470-0010. doi:10.1103/physrevd.105.124017.

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An interferometer design that cancels all displacement noises of its test masses and maintains a gravitational-wave (GW) signal by combining multiple detector signals is called a displacement noise-free interferometer (DFI). The idea has been considered previously for a laser interferometer. However, a limitation of a laser DFI is that its sensitive frequency band is too high for astrophysical GW sources, ∼10⁵ Hz even for a kilometer-sized interferometer. To circumvent this limitation, in this paper, we propose a neutron DFI, in which neutrons are used instead of light. Since neutrons have velocities much lower than the speed of light, the sensitive frequency band of a neutron DFI can be lowered down to ∼10⁻¹ Hz. Therefore, a neutron DFI can be utilized for detecting GWs that are inaccessible by an ordinary laser interferometer on the ground.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Nishizawa, Atsushi0000-0003-3562-0990
Iwaguchi, Shoki0000-0002-0851-8205
Chen, Yanbei0000-0002-9730-9463
Ishikawa, Tomohiro0000-0002-5708-1310
Wu, Bin0000-0002-9689-7099
Shimizu, Hirohiko0000-0002-8767-6542
Kitaguchi, Masaaki0000-0001-7637-6467
Michimura, Yuta0000-0002-2218-4002
Kawamura, Seiji0000-0002-0841-4529
Additional Information:© 2022 American Physical Society. (Received 25 December 2021; accepted 12 May 2022; published 8 June 2022) A. N. is supported by JSPS KAKENHI Grants No. JP19H01894 and No. JP20H04726 and by Research Grants from Inamori Foundation. S. K. is supported by JSPS KAKENHI Grant No. JP19K21875.
Group:Astronomy Department, LIGO
Funding AgencyGrant Number
Japan Society for the Promotion of Science (JSPS)JP19H01894
Japan Society for the Promotion of Science (JSPS)JP20H04726
Inamori FoundationUNSPECIFIED
Japan Society for the Promotion of Science (JSPS)JP19K21875
Issue or Number:12
Record Number:CaltechAUTHORS:20220715-332606000
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:115635
Deposited By: George Porter
Deposited On:18 Jul 2022 14:45
Last Modified:18 Jul 2022 14:45

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