Publications

Optimization of quantum noise in space gravitational-wave antenna DECIGO with optical-spring quantum locking considering mixture of vacuum fluctuations in homodyne detection

• Kenji Tsuji, Tomohiro Ishikawa, Kentaro Komori, Koji Nagano, Yutaro Enomoto, Yuta Michimura, Kurumi Umemura, Ryuma Shimizu, Bin Wu, Shoki Iwaguchi, Yuki Kawasaki, Akira Furusawa, Seiji Kawamura
• Galaxies, 2023, 11(6), 111
• DOI: https://doi.org/10.3390/galaxies11060111

First-step experiment for sensitivity improvement of DECIGO: Sensitivity optimization for simulated quantum noise by completing the square

• Tomohiro Ishikawa, Yuki Kawasaki,Kenji Tsuji, Rika Yamada, Izumi Watanabe, Bin Wu, Shoki Iwaguchi, Ryuma Shimizu, Kurumi Umemura, Koji Nagano, Yutaro Enomoto, Kentaro Komori, Yuta Michimura, Akira Furusawa, Seiji Kawamura
• Phys. Rev. D, 2023, 107, 022007
• DOI: https://doi.org/10.1103/PhysRevD.107.022007

Significance of Fabry-Perot cavities for space gravitational wave antenna DECIGO

• Kenji Tsuji, Tomohiro Ishikawa, Kurumi Umemura, Yuki Kawasaki, Shoki Iwaguchi, Ryuma Shimizu, Masaki Ando, Seiji Kawamura
• Galaxies, 2024, 12(2), 113
• DOI: https://doi.org/10.3390/galaxies12020013

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

• Yuki Kawasaki, Shoki Iwaguchi, Tomohiro Ishikawa, Atsushi Nishizawa, Masaaki Kitaguchi, Yutaka Yamagata, Yanbei Chen, Bin Wu, Ryuma Shimizu, Kurumi Umemura, Kenji Tsuji, Hirohiko Shimizu, Yuta Michimura, Kazuhiro Kobayashi, Takafumi Onishi, Seiji Kawamura
• Class. Quantum Grav. 2024, 41, 117002
• DOI: https://doi.org/10.1088/1361-6382/ad42fa

Feasibility of loop-gain tuning for general measurement systems inspired by quantum locking for DECIGO

• Tomohiro Ishikawa, Yuki Kawasaki, Kenji Tsuji, Ryuma Shimizu, Kurumi Umemura, Bin Wu, Shoki Iwaguchi,  Yuta Michimura, Koji Nagano, Yutaro Enomoto, Kentaro Komori, Shinji Doki, Akira Furusawa, Seiji Kawamura
• Class. Quantum Grav. 2024, 41 215013
• DOI: https://doi.org/10.1088/1361-6382/ad7cb6