A Polar-Modulation-Based Cryogenic Qubit State Controller in 28nm Bulk CMOS

📋 论文概要

本文提出了一种基于极坐标调制（Polar Modulation）的低温量子比特状态控制器，采用28nm体CMOS工艺实现，可在3-4K低温环境下工作，旨在解决超导量子计算系统中控制器硬件从室温到低温的规模化集成问题。该设计通过高度集成的cryo-CMOS ASIC，提升了量子比特驱动能力，为量子计算系统的扩展提供了可行方案。

💡 主要创新点

• 首次将极坐标调制技术应用于低温CMOS量子比特控制器，实现了高效的状态控制。
• 在28nm体CMOS工艺上设计并验证了可在3-4K低温下工作的完整控制链路，突破了传统室温控制器的扩展瓶颈。

🏷 关键词

📄 原文摘要

Quantum Information Sciences, Beijing, China 1 2 In today’s mainstream superconducting quantum computing platforms in a dilution refrigerator, the qubits work at a cryogenic temperature (CT) of a few tens of mK, while the qubit controller hardware works on plates with temperature ranging from a few K to room temperature (RT). The highly-integrated cryo-CMOS qubit controller ASIC that can fully work at 3-4K has been proven to be the most feasible way to scale down the quantum computing system [1-5]. In [1], a pulse modulator is implemented with a limited qubit driving capability, which can only generate fixed length symmetric driving pulse. The controllers in [2,3] generated the RF driving pulse with a frequency division

👥 作者与机构

Yanshu Guo1,2, Yaoyu Li1, Wenqiang Huang1, Songyao Tan1, Qichun Liu3,

Tiefu Li1,3, Ning Deng1, Zhihua Wang1, Yuanjin Zheng2, Hanjun Jiang1 Tsinghua University, Beijing, China Nanyang Technological University, Singapore, Singapore 3 Beijing Academy of