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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 +10
Quantum locking using optical spring and homodyne detection has been devised to reduce quantum noise that limits the sensitivity of DECIGO, a space-based gravitational wave antenna…
Quantum-enhanced optical phase-insensitive heterodyne detection beyond 3-dB noise penalty of image band
Keitaro Anai, Yutaro Enomoto, Hiroto Omura +4
Optical phase-insensitive heterodyne (beat-note) detection, which measures the relative phase of two beams at different frequencies through their interference, is a key sensing tec…
First results of axion dark matter search with DANCE
Yuka Oshima, Hiroki Fujimoto, Jun'ya Kume +7
Axions are one of the well-motivated candidates for dark matter, originally proposed to solve the strong CP problem in particle physics. Dark matter Axion search with riNg Cavity E…