可编程CMOS DAC在低温环境中用于控制超导量子比特
Programmable CMOS DAC Operating in Cryogenic Environments for Controlling Superconducting Qubits
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中文总结 AI 辅助
本文提出一种可在低温下工作的CMOS电流型DAC，用于精确控制超导量子比特的磁通量和读出，具有数字可调性，有望推动高保真低温控制架构的发展。
中文摘要 AI 辅助
本文介绍了一种在低温温度下工作的CMOS电流型数模转换器（DAC）的设计和测试结果，该转换器可用于精确控制耦合到量子比特的磁通量，或用于超导电路的读出。在驱动超导电路时，电流脉冲输出的幅度、上升和下降斜率可通过数字控制进行调节，脉冲宽度可通过外部触发进行控制。该设计采用平面90纳米CMOS工艺实现，测试结果与电路预测高度吻合。该解决方案具有广泛的数字可调性，使其有望应用于本文讨论之外的多种量子电路。鉴于数字CMOS控制的广泛灵活性，我们预计这种DAC设计将推动下一代用于超导量子比特的高保真低温CMOS控制架构的发展。
英文摘要
This paper presents the design and test results of a CMOS current-based Digital to Analog Converter (DAC) that operates at cryogenic temperatures and that can be used to precisely control the amount of flux coupled to qubits or that can be used in the readout of superconducting circuits. The current pulse output can be controlled in terms of its amplitude, rise and fall slopes, via digital controls, and pulse width, via external triggers, while driving a superconducting circuit. The design has been implemented in a planar 90 nm CMOS process and test results closely match circuit predictions. The solution's wide degree of digital tunability affords potential application of the same device to many types of quantum circuits, beyond those discussed here. Due to the wide-ranging flexibility of digital CMOS control, we envision that this DAC design will enable the next generation of high-fidelity cryo-CMOS control architectures for superconducting qubits.
发表机构
- Northrop Grumman Systems Corporation（诺斯罗普·格鲁曼系统公司）
机构由 AI 辅助整理，请以论文原文为准。
