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对于通用门套件的泄漏基准测试

Bujiao Wu^1,2, Xiaoyang Wang^1,3, Xiao Yuan^1,2

¹Center on Frontiers of Computing Studies, Peking University, Beijing 100871, China.

Entropy (Basel, Switzerland)

|January 22, 2024

概括

我们引入了泄漏随机基准测试 (LRB),以准确测量量子系统的泄漏. 这种新方法具有对噪声和基准多量子比特系统的稳定性,克服了先前技术的局限性.

科学领域:

量子信息科学量子信息科学
量子计算是一种量子计算.
量子错误纠正方法量子错误纠正方法

背景情况:

泄漏错误,量子信息丢失到异常状态,是量子计算的一个重大挑战.
现有的漏洞基准测试方法往往对噪声敏感,并且仅限于单个量子比特.
开发强大的泄漏检测和纠正对于推进容错量子计算至关重要.

研究的目的:

提出一个高效和准确的框架来测量多量子比特量子系统中的泄漏率.
与现有方法相比,开发一种对状态准备和测量 (SPAM) 噪声不那么敏感的协议.
为了能够对多量子比特泄漏进行基准测试,这种能力以前没有实现.

主要方法:

引入泄漏随机基准测试 (LRB) 用于量化量子系统中的泄漏.
在噪音假设下,开发一个交叉变体 (iLRB) 来对多量子比特门的平均泄漏率进行基准测试.
使用流量调,对两个量子比特门的iLRB的实验演示,并对泄漏模型进行分析.

主要成果:

LRB证明了对SPAM噪音的不敏感性提高,门设置假设较少.
LRB首次成功地对多量子比特系统中的泄漏进行了基准测试.
数字实验表明iLRB协议结果与理论泄漏模型之间存在很好的一致性.

结论:

拟议的LRB和iLRB协议为量子系统中的泄漏特征提供了高效和准确的方法.
这些协议提高了检测和减轻泄漏错误的能力,这对于可扩展的量子计算至关重要.
LRB和iLRB的可行性为更可靠的量子硬件开发和错误纠正策略铺平了道路.

关键词:

泄漏错误是因为泄漏的错误.量子计算是一种量子计算.量子大门是一种量子大门.随机基准测试 (benchmarking) 是一种随机的基准测试.

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