282 citations · 4.1k across the 132 of their papers we have counts for
132 papers
Quantum uncertainty of gravitational field and entanglement in superposed massive particles
Yuuki Sugiyama, Akira Matsumura, Kazuhiro Yamamoto
Investigating the quantum nature of gravity is an important issue in modern physics. Recently, studies pertaining to the quantum superposition of gravitational potential have garne…
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-…
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…
Massive fermion between two parallel chiral plates
Ar Rohim, Apriadi Salim Adam, Kazuhiro Yamamoto
We study the system of a massive fermion field confined between two parallel plates, where the properties of both plates are discussed under chiral MIT boundary conditions. We inve…
Consistency between causality and complementarity guaranteed by the Robertson inequality in quantum field theory
Yuuki Sugiyama, Akira Matsumura, Kazuhiro Yamamoto
It has long been debated whether gravity should be quantized or not. Recently, the authors in [Sci. Rep. 6, 22777 (2016); Proc. Natl. Acad. Sci. U.S.A. 106, 3035 (2009)] discussed…