JSSC 2023第11期Other28nm

Design and Characterization of a 4-mWQubit 28-nm Cryo-CMOS Integrated Circuit fo

设计并表征了一款用于量子计算的28纳米低温CMOS集成电路，实现低功耗高精度量子控制。

28nm CMOS, 4 mW/qubit, 单量子位XY和Z平均门错误率0.17%-0.36%和0.14%-0.17%, 两量子位平均交叉熵基准循环错误率1.2%

量子控制低温CMOS集成电路量子计算错误率

▸4-8GHz RF脉冲发生器用于XY控制

▸三个基带电流发生器用于量子位和耦合器频率控制

▸集成数字控制器和序列器用于门序列播放

Abstract

A universal fault-tolerant quantum computer will require large-scale control systems that can realize all the waveforms required to implement a gateset that is universal for quantum computing. Optimization of such a system, which must be precise and extensible, is an open research challenge. Here, we present a cryogenic quantum control integrated circuit (IC) that is able to control all the necessary degrees of free- dom of a two-qubit subcircuit of a superconducting quantum processor. Specifica