3 papers
quant-ph2026
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…
quant-ph2026
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…
quant-ph2026
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…