activity
20232025
most citedControl of the coupling between Kerr-cat qubits via transmon couplers

14 citations · 16 across the 5 of their papers we have counts for

collaborators

5 papers

quant-ph2025

Four-body interactions in Kerr parametric oscillator circuits

Yohei Kawakami, Tomohiro Yamaji, Aiko Yamaguchi +9

We theoretically present new unit circuits of Kerr parametric oscillators (KPOs) with four-body interactions, which enable the scalable embedding of all-to-all connected logical Is…

quant-ph2025

High-speed gates in Kerr-cat qubits via fast-forward scaling

Takaaki Aoki, Shumpei Masuda

Kerr parametric oscillators can encode Kerr-cat qubits, whose biased-noise nature can reduce the hardware overhead required for fault-tolerant quantum computation. In a recently pr…

quant-ph2024★ 2 cited

Residual--coupling suppression and fast two-qubit gate for Kerr-cat qubits based on level-degeneracy engineering

Takaaki Aoki, Akiyoshi Tomonaga, Kosuke Mizuno +1

Building large-scale quantum computers requires an interqubit-coupling scheme with a high on-off ratio to avoid unwanted crosstalk coming from residual coupling and to enable fast…

quant-ph2024

Stabilization of Kerr-cat qubits with quantum circuit refrigerator

Shumpei Masuda, Shunsuke Kamimura, Tsuyoshi Yamamoto +2

A periodically-driven superconducting nonlinear resonator can implement a Kerr-cat qubit, which provides a promising route to a quantum computer with a long lifetime. However, the…

quant-ph2023★ 14 cited

Control of the coupling between Kerr-cat qubits via transmon couplers

Takaaki Aoki, Taro Kanao, Hayato Goto +2

Kerr-cat qubits are a promising candidate for fault-tolerant quantum computers owing to the biased nature of their errors. The coupling between the qubits can be utilized for…