129 citations · 688 across the 35 of their papers we have counts for
35 papers
Nanohertz Pendulum toward Macroscopic Entanglement under Structural Damping
Azusa Sawada, Hina Nakano, Kanta Watanabe +3
Pendulums are attractive for macroscopic quantum control because gravity dilution reduces mechanical loss, while the force-noise spectrum associated with structural damping a…
Quantum state of a suspended mirror coupled to cavity light -- Wiener filter analysis of the pendulum and rotational modes
Tomoya Shichijo, Nobuyuki Matsumoto, Akira Matsumura +3
We investigated the quantum state of an optomechanical suspended mirror under continuous measurement and feedback control using Wiener filtering. We focus on the impact of the two-…
Use of Schwinger-Dyson equation in constructing an approximate trivializing map
Peter Boyle, Taku Izubuchi, Luchang Jin +4
We construct an approximate trivializing map by using a Schwinger-Dyson equation. The advantage of this method is that: (1) The basis for the flow kernel can be chosen arbitrarily…
Effective description of a suspended mirror coupled to cavity light -Limitations of Q-enhancement due to normal mode splitting by an optical spring-
Yuuki Sugiyama, Tomoya Shichijo, Nobuyuki Matsumoto +3
Pendulums have long been used as force sensors due to their ultimately low dissipation (high-quality factor) characteristic. They are widely used in the measurement of the gravitat…
Generating quantum entanglement between macroscopic objects with continuous measurement and feedback control
Daisuke Miki, Nobuyuki Matsumoto, Akira Matsumura +4
This study is aimed at investigating the feasibility of generating quantum entanglement between macroscopic mechanical mirrors in optomechanical systems while under continuous meas…
Energy of boundary of spacetime
Yu Hamada, Nobuyuki Matsumoto
We consider how the energy can be stored in the boundary of spacetime, in particular in a spherical bubble that can be made by a quantum gravitational process. Our calculation is p…