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Benchmarking variational quantum algorithms for combinatorial optimization in practice

delete2026-03-10
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OA
AI
T
Tim Schwägerl *
Y
Yahui Chai
T
Tobias Hartung
K
Karl Jansen
S
Stefan Kühn
DOI:10.1007/s42484-026-00355-ydelete
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摘要

摘要

En 中文
变分量子算法,特别是变分量子特征求解器的变体,已被提出作为组合优化(CO)问题的解决方案。这些方法仅需浅层基态电路,被认为适合当前的有噪声中等规模量子硬件。然而,训练变分电路所需的资源往往随问题规模呈超多项式级增长。本研究中,我们通过数值方法研究了这种缩放对于CO问题的实际影响,以Max-Cut和随机QUBO实例作为基准。在固定的计算预算下,我们比较了训练浅层变分电路、有放回采样和贪婪局部搜索的平均性能。我们确定了量子算法在何种最小问题规模下始终优于随机采样,并对每个规模,我们表征了它们与贪婪局部搜索的差距。除平均性能外,我们还分析了不同算法在单个问题实例间的相关性。这些结果强化了在现实资源约束下,为组合优化问题建立直观且有效的变分量子算法基准的合理性。
Keyword:
Variational quantum algorithms
Combinatorial optimization
Measurement shot noise
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期刊

Q
Quantum Machine Intelligence
IF:
4.4
论文数:
440
被引数:
796

机构

N
Northeastern University
学者数:
2.5W
论文数: 1.6W
被引数: 3.0W
I
institut für physik
学者数:
225
论文数: 38
被引数: 0
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