超导量子计算读出电子学的动态自适应读出方法。

IF 1.7 4区 工程技术 Q3 INSTRUMENTS & INSTRUMENTATION
Chenxi Chen, Yujie Zhao, Liwei Qiu, Yuchen Yang, Ziqi Wang, Xing Zhu, Zhongtao Shen, Shubin Liu
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引用次数: 0

摘要

实时控制和读出在超导量子计算中至关重要,因为许多算法必须在量子比特相干时间内尽可能多地执行量子运算。在这里,我们专门解决了在我们的实验平台中被认为是最耗时的操作的量子位读出,并提出了一种动态自适应读出方法(arm)来提高量子位读出的性能。与采用高斯Naïve贝叶斯作为判别器的标准读出方法(SRM)相比,当两种方法的读出持续时间设置为一致时,DARM的读出保真度可以相对提高22.76%。此外,该算法还可以提前终止测量脉冲,测量脉冲长度在统计平均值上相对减少9.93%。在基于现场可编程门阵列的系统上实现了arm,从数字处理单元获得量子比特信号到有效输出信息的电子处理延迟为52 ns,仅比SRM长4 ns。与前馈神经网络读出方法相比,该方法能够以流水线方式工作,具有更短的电子处理延迟和更低的电子利用率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A dynamic adaptive readout method for readout electronics of superconducting quantum computing.

Real-time control and readout are pivotal in superconducting quantum computing, given the imperative for numerous algorithms to perform quantum operations as much as possible within the qubit coherent time. Here, we specifically address the qubit readout, recognized as the most time-consuming operation within our experimental platform, and propose a dynamic adaptive readout method (DARM) to improve the performance of qubit readout. In contrast to a standard readout method (SRM) employing Gaussian Naïve Bayes as a discriminator, the DARM can demonstrate a 22.76% relative improvement on readout fidelity when the readout duration time of both methods is set to be consistent. Furthermore, the DARM can also terminate measurement pulse ahead with a 9.93% relative reduction of measurement pulse length on statistical average. The DARM is implemented on a field-programmable-gate-array-based system, and the electronic processing latency, from the digital processing unit getting the qubit signal to the valid output information, is 52 ns, which is only 4 ns longer than the SRM. Compared with the feedforward neural network readout method, the DARM can work in a pipeline mode with shorter electronic processing latency and lower electronic utilization.

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来源期刊
Review of Scientific Instruments
Review of Scientific Instruments 工程技术-物理:应用
CiteScore
3.00
自引率
12.50%
发文量
758
审稿时长
2.6 months
期刊介绍: Review of Scientific Instruments, is committed to the publication of advances in scientific instruments, apparatuses, and techniques. RSI seeks to meet the needs of engineers and scientists in physics, chemistry, and the life sciences.
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