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arXiv 2602.01353quant-phphysics.comp-ph
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非变分启发式量子优化方法

Methods for non-variational heuristic quantum optimisation

The University of Edinburgh(爱丁堡大学)

Stuart Ferguson, Petros Wallden

AI总结:

本文提出了一种基于马尔可夫链蒙特卡洛技术的非变分量子优化方法,通过量子增强退火和并行退火在硬实例上展示出优于经典方法的扩展性。

摘要:

优化在许多科学和工业应用中起着核心作用,量子计算已被广泛提出作为在该领域实现计算优势的手段。到目前为止,关于设计抗噪声量子算法的研究主要由变分方法主导,而替代方法仍然相对未被探索。在本工作中,我们引入了一种新的量子优化启发式方法,放弃这一变分框架,转而采用基于马尔可夫链蒙特卡洛(MCMC)技术的混合量子-经典方法。我们介绍了量子增强退火(QeSA)和量子增强并行退火(QePT),并在困难的肖尔廷- Kirkpatrick 实例上验证了这些启发式方法,并展示了其在经典基准上的优越扩展性。这些算法预计会具有对噪声的固有鲁棒性,并且仅需经典通信即可在量子和经典资源上并行执行。因此,它们为利用近期量子设备解决大规模优化问题提供了一条可扩展且可能具有竞争力的途径。

英文摘要:

Optimisation plays a central role in a wide range of scientific and industrial applications, and quantum computing has been widely proposed as a means to achieve computational advantages in this domain. To date, research into the design of noise-resilient quantum algorithms has been dominated by variational approaches, while alternatives remain relatively unexplored. In this work, we introduce a novel class of quantum optimisation heuristics that forgo this variational framework in favour of a hybrid quantum-classical approach built upon Markov Chain Monte Carlo (MCMC) techniques. We introduce Quantum-enhanced Simulated Annealing (QeSA) and Quantum-enhanced Parallel Tempering (QePT), before validating these heuristics on hard Sherrington-Kirkpatrick instances and demonstrate their superior scaling over classical benchmarks. These algorithms are expected to exhibit inherent robustness to noise and support parallel execution across both quantum and classical resources with only classical communication required. As such, they offer a scalable and potentially competitive route toward solving large-scale optimisation problems with near-term quantum devices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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