activity
19982026
most citedQuantum Zeno effect by general measurements

223 citations · 1.6k across the 42 of their papers we have counts for

collaborators

42 papers

quant-ph2026

Ultra-Weak-Pump Microwave-to-Optical Quantum Transduction via a Single Color Center

Kyosuke Goto, Hodaka Kurokawa, Hideo Kosaka +1

Scaling up superconducting quantum processors remains a central challenge for realizing fault-tolerant quantum computation. Although distributed architectures based on optical phot…

quant-ph2026

High-gain and large-bandwidth Josephson parametric amplifier influenced by Fabry-Pérot interference

Shingo Kono, Jesper Ilves, Arjan F. van Loo +8

Quantum-limited parametric amplifiers are essential components for many quantum technologies operating in the microwave domain. Achieving both high gain and broad bandwidth, howeve…

quant-ph2025

Resonance fluorescence spectra of a driven Kerr nonlinear resonator

Aree Taguchi, Katsuta Sakai, Aiko Yamaguchi +11

Resonance fluorescence spectra of a driven Kerr nonlinear resonator is investigated both theoretically and experimentally. When the Kerr nonlinear resonator is driven strongly such…

quant-ph2024

Galvanically connected tunable coupler between a cavity and a waveguide

Kazuki Koshino

One of the key technologies in recent quantum devices is the tunable coupling among quantum elements such as qubits, cavities, and waveguides. In this work, we propose a cavity-wav…

quant-ph2024★ 2 cited

Labeling eigenstates of qubit-cavity systems based on the continuity of qubit occupancy: Detecting resonances to higher excited qubit states

Shimpei Goto, Kazuki Koshino

We propose a new method for labeling the eigenstates of qubit-cavity systems based on the continuity of the qubit occupancy. The labeled eigenstates give a rough estimate of the ev…

quant-ph2023★ 13 cited

Diamond optomechanical cavity with a color center for microwave-to-optical quantum interfaces

Byunggi Kim, Hodaka Kurokawa, Katsuta Sakai +3

Quantum transduction between microwave and optical photons plays a key role in quantum communication among remote qubits. Although the quantum transduction schemes generating commu…