10 papers
Quantum Noise Reduction in the Space-based Gravitational Wave Antenna DECIGO Using Optical Springs and Homodyne Detection scheme
Kenji Tsuji, Tomohiro Ishikawa, Kentaro Komori +6
The DECi-hertz Interferometer Gravitational-wave Observatory (DECIGO) is a planned space-based, next-generation gravitational wave detector aimed at observing primordial gravitatio…
A Polarization-Decomposed Method for Simulating Inhomogeneous Birefringence in Laser-Interferometric Gravitational-Wave Detectors
Haoyu Wang, Yuta Michimura, Keiko Kokeyama +9
Birefringence in test mass substrates is an emerging limitation for current and future laser-interferometric gravitational-wave detectors, particularly as detectors move toward hig…
Quantum Noise from Vacuum Field Injection in Optical Cavities with Diffraction-related Loss
Kurumi Umemura, Tomohiro Ishikawa, Kenji Tsuji +6
The space-based gravitational wave detector DECIGO is designed to observe primordial gravitational waves with 1,000 km Fabry-Perot cavities. Its sensitivity is limited by quantum n…
Jiggled interferometer: Ground-based gravitational wave detector using rapidly-repeated free-falling test masses
Shoki Iwaguchi, Bin Wu, Kurumi Umemura +10
We propose the Jiggled Interferometer (JIGI), a novel ground-based gravitational wave detector employing low-frequency noise mitigation similar to that of space-based detectors. Us…
In situ substrate birefringence characterization in gravitational wave detectors using a heterodyne polarimetry method
Satoshi Tanioka, Terri Pearce, Yuta Michimura +6
High-quality test mass substrates play essential roles in laser interferometric gravitational wave detectors. Inhomogeneous birefringence distribution in test mass substrates, howe…
Proof-of-Principle Experiment on a Displacement-Noise-Free Neutron Interferometer for Gravitational Wave Detection
Shoki Iwaguchi, Takuhiro Fujiie, Taro Nambu +13
The displacement-noise-free interferometer (DFI) is designed to eliminate all displacement-induced noise while retaining sensitivity to gravitational wave (GW) signals. Ground-base…