Neutron displacement noise-free interferometer for gravitational-wave detection
Creators
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1.
University of Tokyo
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2.
Nagoya University
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3.
California Institute of Technology
Abstract
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.
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.Attached Files
Published - PhysRevD.105.124017.pdf
Accepted Version - 2112.11982.pdf
Files
2112.11982.pdf
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Additional details
Identifiers
- Eprint ID
- 115635
- Resolver ID
- CaltechAUTHORS:20220715-332606000
Related works
- Describes
- 10.1103/PhysRevD.105.124017 (DOI)
- https://arxiv.org/abs/2112.11982 (URL)
Funding
- Japan Society for the Promotion of Science (JSPS)
- JP19H01894
- Japan Society for the Promotion of Science (JSPS)
- JP20H04726
- Inamori Foundation
- Japan Society for the Promotion of Science (JSPS)
- JP19K21875
Dates
- Created
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2022-07-18Created from EPrint's datestamp field
- Updated
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2022-07-18Created from EPrint's last_modified field