2024-03-29T06:56:46Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02001620
2023-07-07T00:15:39Z
336:695:696
Reduction of quantum noise using the quantum locking with an optical spring for gravitational wave detectors
Yamada, Rika
Enomoto, Yutaro
Watanabe, Izumi
Nagano, Koji
Michimura, Yuta
Nishizawa, Atsushi
Komori, Kentaro
Naito, Takeo
Morimoto, Taigen
Iwaguchi, Shoki
Ishikawa, Tomohiro
Ando, Masaki
Furusawa, Akira
Kawamura, Seiji
In our previous research, simulation showed that a quantum locking scheme with homodyne detection in sub-cavities is effective in surpassing the quantum noise limit for Deci-hertz Interferometer Gravitational Wave Observatory (DECIGO) in a limited frequency range. This time we have simulated an optical spring effect in the sub-cavities of the quantum locking scheme. We found that the optimized total quantum noise is reduced in a broader frequency band, compared to the case without the optical spring effect significantly improving the sensitivity of DECIGO to the primordial gravitational waves.
journal article
Elsevier
2021-06-28
application/pdf
Physics Letters A
402
127365
03759601
https://nagoya.repo.nii.ac.jp/record/2001620/files/repository.pdf
eng
https://doi.org/10.1016/j.physleta.2021.127365
© 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/