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

Autor: Kawasaki, Yuki, Iwaguchi, Shoki, Ishikawa, Tomohiro, Nishizawa, Atsushi, Kitaguchi, Masaaki, Yamagata, Yutaka, Chen, Yanbei, Wu, Bin, Shimizu, Ryuma, Umemura, Kurumi, Tsuji, Kenji, Shimizu, Hirohiko, Michimura, Yuta, Kobayashi, Kazuhiro, Onishi, Takafumi, Kawamura, Seiji
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: 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.
Comment: 17 pages, 6figures
Databáze: arXiv