activity
20122023
most citedHybridizing ferromagnetic magnons and microwave photons in the quantum limit

1.1k citations · 4.7k across the 26 of their papers we have counts for

collaborators

27 papers

quant-ph2023★ 1 cited

ZZ-Interaction-Free Single-Qubit-Gate Optimization in Superconducting Qubits

Shu Watanabe, Yutaka Tabuchi, Kentaro Heya +2

Overcoming the issue of qubit-frequency fluctuations is essential to realize stable and practical quantum computing with solid-state qubits. Static ZZ interaction, which causes a f…

quant-ph2023★ 11 cited

Experimental demonstration of a high-fidelity virtual two-qubit gate

Akhil Pratap Singh, Kosuke Mitarai, Yasunari Suzuki +4

We experimentally demonstrate a virtual two-qubit gate and characterize it using quantum process tomography~(QPT). The virtual two-qubit gate decomposes an actual two-qubit gate in…

quant-ph2022★ 12 cited

NEO-QEC: Neural Network Enhanced Online Superconducting Decoder for Surface Codes

Yosuke Ueno, Masaaki Kondo, Masamitsu Tanaka +2

Quantum error correction (QEC) is essential for quantum computing to mitigate the effect of errors on qubits, and surface code (SC) is one of the most promising QEC methods. Decodi…

quant-ph2022★ 139 cited

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…

quant-ph2021

Superconducting quantum computer: a hint for building architectures

Yutaka Tabuchi, Shuhei Tamate, Shinichi Yorozu

We discuss the scalability of superconducting quantum computers, especially in a wiring problem. The number of wiring inside a cryostat is almost proportional to the number of qubi…

quant-ph2021★ 8 cited

Superconducting Acousto-optic Phase Modulator

Ayato Okada, Rekishu Yamazaki, Maria Fuwa +9

We report the development of a superconducting acousto-optic phase modulator fabricated on a lithium niobate substrate. A titanium-diffused optical waveguide is placed in a surface…