论文标题
噪声量子功率流
Noise-Resilient Quantum Power Flow
论文作者
论文摘要
量子功率流（QPF）提供了鼓舞人心的方向，以解决电源的计算负担利用量子计算。但是，现有的QPF方法主要基于对噪声敏感的量子算法，其实际利用受到当今嘈杂的中间尺度量子（NISQ）设备的有限能力的有限能力的严重阻碍。本文设计了NISQ-QPF算法，该算法可以在嘈杂的量子计算机上计算功率流计算。主要贡献包括：（1）基于变异的量子电路（VQC）的AC功率流式公式，该公式可以使用短深度量子电路启用QPF； （2）基于变异量子线性求解器（VQL）和修改的快速解耦功率流的基于噪声QPF求解器； （3）实用的NISQ-QPF框架，用于在嘈杂的量子机上可实现可靠的功率流分析。有希望的案例研究证明了NISQ-QPF对IBM真实嘈杂的量子设备的有效性和准确性。
Quantum power flow (QPF) provides inspiring directions for tackling power flow's computational burdens leveraging quantum computing. However, existing QPF methods are mainly based on noise-sensitive quantum algorithms, whose practical utilization is significantly hindered by the limited capability of today's noisy-intermediate-scale quantum (NISQ) devices. This paper devises a NISQ-QPF algorithm, which enables power flow calculation on noisy quantum computers. The main contributions include: (1) a variational quantum circuit (VQC)-based AC power flow formulation, which enables QPF using short-depth quantum circuits; (2) noise-resilient QPF solvers based on the variational quantum linear solver (VQLS) and modified fast decoupled power flow; (3) a practical NISQ-QPF framework for implementable and reliable power flow analysis on noisy quantum machines. Promising case studies validate the effectiveness and accuracy of NISQ-QPF on IBM's real, noisy quantum devices.
