45 citations · 102 across the 17 of their papers we have counts for
4 papers · 1 filter
Parameter estimation by decoherence in the double-slit experiment
Akira Matsumura, Taishi Ikeda, Shingo Kukita
We discuss a parameter estimation problem using quantum decoherece in the double-slit interferometer. We consider a particle coupled to a massive scalar field after the particle pa…
Harvesting large scale entanglement in de Sitter space with multiple detectors
Shingo Kukita, Yasusada Nambu
We consider entanglement harvesting in de Sitter space using a model of multiple qubit detectors. We obtain the formula of the entanglement negativity for this system. Applying the…
Entanglement dynamics in de Sitter spacetime
Shingo Kukita, Yasusada Nambu
We apply the master equation with dynamical coarse graining approximation to a pair of detectors interacting with a scalar field. By solving the master equation numerically, we inv…
Perturbative Dynamics of Open Quantum Systems by Renormalization Group Method
Shingo Kukita
We analyze perturbative dynamics of a composite system consisting of a quantum mechanical system and an environment by the renormalization group (RG) method. The solution obtained…