点击次数：

所属单位：University of Electronic Science and Technology of China (UESTC)

教研室：Integrated Physics Group (IPG)

发表刊物：IEEE Transactions on Microwave Theory and Techniques (TMTT)

刊物所在地：USA

关键字：quantum computer, Cryo-CMOS, RF reflectometer, Mixer-first receiver, frequency division multiplexing

摘要：Quantum error correction (QEC) is in-demand for a fault-tolerant quantum computer. Currently, the QEC cycle is bottlenecked by the quantum-bit (qubit) readout. To this end, RF dispersive reflectometry with frequency division multiplexing (FDM) is preferred due to its high fidelity and scalability. However, for a low noise temperature Tnoise, cryogenic low noise amplifiers (cryo-LNA) of classic LNA-first reflectometers require high transconductance efficiency (gm2 /Id). These openloop cryo-LNAs also present limited linearity under large output voltage, resulting in errors of FDM readout.

备注：Accepted on July 7, 2026.

全部作者：Zizhen Xu,Tianyu Dong,Yijie Chen,Weichen Wang,Yue Yang,Zhixiao Sun,Ruihong Wu,Haichuan Lin,Mingtang Deng

第一作者：Yujie Geng

论文类型：期刊

通讯作者：Cheng Wang

卷号：N/A

期号：N/A

页面范围：1-14

是否译文：否

发表时间：2026-07-07