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A Variational Qubit-Efficient MaxCut Heuristic Algorithm

delete2026-02-16
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OA
AI
Y
Yovav Tene-Cohen
T
Tomer Kelman
O
Ohad Lev
A
Adi Makmal *
DOI:10.1038/s41534-026-01186-2delete
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摘要

摘要

En 中文
MaxCut是一个关键的NP难组合优化问题。量子计算提供了可能优于经典方法的解决此类问题的方法,量子近似优化算法(QAOA)是其中的一个前沿示例。然而,当前量子方法的性能受到硬件噪声和有限量子比特容量的阻碍。我们提出了一种变分量子比特高效MaxCut(QEMC)算法,该算法仅需$$O(\log N)$$量子比特即可处理规模为N的图,与QAOA相比实现了指数级降低。我们在真实超导硬件上对32个节点的图实例(5个量子比特)展示了尖端性能,并通过经典模拟对最多2048个节点的图(11个量子比特)进行了验证。QEMC算法基于一种创新的编码方案,具有潜在的广泛适用性,使其具备强大的噪声鲁棒性,同时也支持其高效经典模拟。因此,QEMC算法为QAOA在噪声设备上提供了具有挑战性的基准测试,并给出了一种新颖的量子启发式方法。

期刊

npj Quantum Information 封面图
npj Quantum Information
IF:
8.3
论文数:
1.4K
被引数:
8.1K

机构

A
Alexander Kofkin Faculty of Engineering
学者数:
4
论文数: 1
被引数: 0
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