1 citations · 1 across the 6 of their papers we have counts for
7 papers
QuBE/Qubex: an integrated hardware-software system for superconducting qubit experiments with broadband control
Akinori Machino, Kazuhisa Ogawa, Takefumi Miyoshi +21
Achieving high-fidelity operation in large-scale superconducting qubit systems requires not only control hardware with broad frequency coverage, low crosstalk, and tight synchroniz…
Cryogenic Time-Division-Multiplexed Voltage Control for Scalable Trapped-Ion Quantum Processors
Ryutaro Ohira, Shinichi Morisaka, Yoshinori Kurimoto +4
Trapped-ion quantum computers based on the quantum charge-coupled device architecture require on the order of ten trap electrodes per qubit, making the number of vacuum feedthrough…
Microwave Output Stabilization of a Qubit Controller via Device-Level Temperature Control
Yoshinori Kurimoto, Dongjun Lee, Koichiro Ban +8
We present the design and performance of QuEL-1 SE, which is a multichannel qubit controller developed for superconducting qubits. The system incorporates the active thermal stabil…
High fidelity flopping-mode single spin operation with tuning inter-dot orbital levels
Yuta Matsumoto, Xiao-Fei Liu, Arne Ludwig +5
Fast spin manipulation and long spin coherence time in quantum dots are essential features for high fidelity semiconductor spin qubits. However, generally it has not been well esta…
Trapping an Atomic Ion using Time-Division Multiplexed Digital-to-Analog Converters
Ryutaro Ohira, Masanari Miyamoto, Shinichi Morisaka +4
Independent control of numerous electrodes in quantum charge-coupled device architectures presents a significant challenge for wiring and hardware scalability. To address this issu…
Multiplexed Control at Scale for Electrode Arrays in Trapped-Ion Quantum Processors
Ryutaro Ohira, Shinichi Morisaka, Ippei Nakamura +2
The scaling up of trapped-ion quantum processors based on the quantum charge-coupled device (QCCD) architecture is difficult owing to the extensive electronics and high-density wir…
SPulseGen: Succinct pulse generator architecture maximizing gate fidelity for superconducting quantum computers
Ryosuke Matsuo, Kazuhisa Ogawa, Hidehisa Shiomi +6
This paper proposes a cost-effective architecture for an RF pulse generator for superconducting qubits. Most existing works use arbitrary waveform generators (AWGs) that require bo…