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.
Published June 6, 2024
| Version Published
Journal Article
Sagnac-type neutron displacement-noise-free interferometeric gravitational-wave detector
Creators
-
1.
California Institute of Technology
Abstract
Copyright and License
© 2024 IOP Publishing Ltd.
Acknowledgement
We would like to thank R L Savage for English editing. This work was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI Grant Number JP19K21875. A N is supported by JSPS KAKENHI Grant Nos. JP23K03408, JP23H00110, and JP23H04893.
Data Availability
All data that support the findings of this study are included within the article (and any supplementary files).
Additional Information
Focus on the Science Case for Next Generation (XG) Ground-Based Gravitational Wave Detectors
Additional details
Identifiers
- ISSN
- 1361-6382
Funding
- JSPS
- KAKENHI
- JP19K21875
- KAKENHI
- JP23H00110
- KAKENHI
- JP23H04893
- KAKENHI
- JP23K03408
- Japan Society for the Promotion of Science