activity
20092026
most citedFast readout and reset of a superconducting qubit coupled to a resonator with an intrinsic Purcell filter

139 citations · 560 across the 25 of their papers we have counts for

collaborators

26 papers

quant-ph2026

Low-leakage superconducting-qubit measurement with sub-100-ns total duration

Peter A. Spring, Adrian L. Hesse, Shiyu Wang +2

Fast, accurate, and low-leakage qubit measurement is a key requirement for quantum error correction. Here, we demonstrate measurement of a superconducting transmon qubit with a tot…

quant-ph2025

High-fidelity all-microwave CZ gate with partial erasure-error detection via a transmon coupler

Shotaro Shirai, Shinichi Inoue, Shuhei Tamate +3

Entangling gates between neighboring physical qubits are essential for quantum error correction. Implementing them in an all-microwave manner simplifies signal routing and control…

physics.app-ph2025★ 8 cited

Josephson traveling-wave parametric amplifier based on low-intrinsic-loss coplanar lumped-element waveguide

C. W. Sandbo Chang, Arjan F. Van Loo, Chih-Chiao Hung +4

We present a Josephson traveling-wave parametric amplifier (JTWPA) based on a low-loss coplanar lumped-element waveguide architecture. By employing open-stub capacitors and Manhatt…

quant-ph2025★ 2 cited

Selective Excitation of Superconducting Qubits with a Shared Control Line through Pulse Shaping

Ryo Matsuda, Ryutaro Ohira, Toshi Sumida +16

In conventional architectures of superconducting quantum computers, each qubit is connected to its own control line, leading to a commensurate increase in the number of microwave l…

quant-ph2024

High-Performance and Scalable Fault-Tolerant Quantum Computation with Lattice Surgery on a 2.5D Architecture

Yosuke Ueno, Taku Saito, Teruo Tanimoto +4

Due to the high error rate of a qubit, detecting and correcting errors on it is essential for fault-tolerant quantum computing (FTQC). Among several FTQC techniques, lattice surger…

quant-ph2024

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…