量子功率流

摘要：

这封信是量子功率流（QPF）算法的概念证明，该算法支持利用量子计算的各种前所未有的高效电力系统分析。我们的贡献有三个方面：1）建立了一个基于量子态的快速解耦模型，该模型由厄米特矩阵和常数雅可比矩阵构成; 2）设计了一种改进的Harrow-Hassidim-Lloyd（HHL）算法来求解快速解耦的QPF; 3）通过在初始阶段对量子相位估计和互易旋转进行参数化，进一步提高了HHL的效率。有希望的测试结果验证了QPF的准确性和有效性，并展示了QPF在量子计算时代的巨大潜力。

英文摘要：

This letter is a proof of concept for quantum power flow (QPF) algorithms which underpin various unprecedentedly efficient power system analytics exploiting quantum computing. Our contributions are three-fold: 1) Establish a quantum-state-based fast decoupled model empowered by Hermitian and constant Jacobian matrices; 2) Devise an enhanced Harrow-Hassidim-Lloyd (HHL) algorithm to solve the fast decoupled QPF; 3) Further improve the HHL efficiency by parameterizing quantum phase estimation and reciprocal rotation only at the beginning stage. Promising test results validate the accuracy and efficacy of QPF and demonstrate QPF's enormous potential in the era of quantum computing.

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