463 citations · 1.5k across the 19 of their papers we have counts for
19 papers
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…
Efficient tomography of microwave photonic cluster states
Yoshiki Sunada, Shingo Kono, Jesper Ilves +6
Entanglement among a large number of qubits is a crucial resource for many quantum algorithms. Such many-body states have been efficiently generated by entangling a chain of itiner…
Photon-noise-tolerant dispersive readout of a superconducting qubit using a nonlinear Purcell filter
Yoshiki Sunada, Kenshi Yuki, Zhiling Wang +7
Residual noise photons in a readout resonator become a major source of dephasing for a superconducting qubit when the resonator is optimized for a fast, high-fidelity dispersive re…
Mechanically Induced Correlated Errors on Superconducting Qubits with Relaxation Times Exceeding 0.4 Milliseconds
Shingo Kono, Jiahe Pan, Mahdi Chegnizadeh +4
Superconducting qubits are one of the most advanced candidates to realize scalable and fault-tolerant quantum computing. Despite recent significant advancements in the qubit lifeti…
A squeezed mechanical oscillator with milli-second quantum decoherence
Amir Youssefi, Shingo Kono, Mahdi Chegnizadeh +1
An enduring challenge in constructing mechanical oscillator-based hybrid quantum systems is to ensure engineered coupling to an auxiliary degree of freedom while maintaining good m…
Fast readout and reset of a superconducting qubit coupled to a resonator with an intrinsic Purcell filter
Yoshiki Sunada, Shingo Kono, Jesper Ilves +4
Coupling a resonator to a superconducting qubit enables various operations on the qubit, including dispersive readout and unconditional reset. The speed of these operations is limi…