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arXiv 2203.09560quant-ph
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用于电路故障诊断的特殊驱动量子退火

Quantum Annealing with Special Drivers for Circuit Fault Diagnostics

Hannes Leipold, Federico M. Spedalieri

摘要:

我们提出了一个非常一般的构造量子退火协议来解决组合电路故障诊断(CCFD)问题,限制了有效诊断空间的演变。这是通过使用特殊的本地驱动程序,诱导一个可行的配置,是定期和实例独立的每个给定的电路拓扑结构的空间上的过渡图。小实例的分析表明,能隙具有一般形式,最小能隙出现在演化的最后三分之一。我们使用这些功能来构建改进的退火时间表,并通过封闭系统模拟对其性能进行基准测试。我们发现,简并性可以帮助量子退火的性能,特别是对于在其最小故障诊断中具有较高故障数的实例。这与在工业上用于大规模电路的基于蛮力搜索的经典方法的性能形成对比。

英文摘要:

We present a very general construction for quantum annealing protocols to solve Combinational Circuit Fault Diagnosis (CCFD) problems that restricts the evolution to the space of valid diagnoses. This is accomplished by using special local drivers that induce a transition graph on the space of feasible configurations that is regular and instance independent for each given circuit topology. Analysis of small instances shows that the energy gap has a generic form, and that the minimum gap occurs in the last third of the evolution. We used these features to construct an improved annealing schedule and benchmarked its performance through closed system simulations. We found that degeneracy can help the performance of quantum annealing, especially for instances with a higher number of faults in their minimum fault diagnosis. This contrasts with the performance of classical approaches based on brute force search that are used in industry for large scale circuits.

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