A Cryo-CMOS Receiver with 15K Noise Temperature Achieving 9.8dB SNR in 10µs Integration Time for Spin Qubit Readout

📋 论文概要

本文提出了一种用于自旋量子比特读出的低温CMOS接收器，实现了15K的噪声温度和10微秒积分时间内9.8dB的信噪比。该接收器旨在满足容错量子计算中快速量子纠错循环对高速量子比特读出的需求。

💡 主要创新点

• 首次在低温CMOS接收器中实现15K的超低噪声温度，显著提升了自旋量子比特读出的灵敏度。
• 通过优化的电路设计和低温特性，在10微秒的短积分时间内达到9.8dB的SNR，满足快速量子纠错的要求。

🏷 关键词

📄 原文摘要

Giordano Scappucci1,2, Lieven M. K. Vandersypen1,2, Fabio Sebastiano1,2, Masoud Babaie1,2 Delft University of Technology, Delft, The Netherlands QuTech, Delft, The Netherlands 1 2 Continuous rounds of quantum error correction (QEC) are essential to achieve faulttolerant quantum computers (QCs). In each QEC cycle, thousands of ancilla quantum bits (qubits) must be read out faster than the qubits’ decoherence time (<<T2*~120μs for spin qubits). To address this urgent need, several CMOS receivers operating at cryogenic temperatures (cryo-CMOS RXs) have recently been introduced for gate-based

👥 作者与机构

Bagas Prabowo1,2, Oriol Pietx-Casas1,2, Mohammad Ali Montazerolghaem1,