arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2202.01389quant-phcs.LG
收藏

量子变分电路优化技术的实证研究

An Empirical Review of Optimization Techniques for Quantum Variational Circuits

Rensselaer Polytechnic Institute(伦斯勒理工学院);Department of Computer Science(计算机科学系);Troy NY, USA(美国纽约州特洛伊市(此处仅为地址信息,根据提取规则应忽略,正确仅保留大学))

Owen Lockwood

摘要:

量子变分电路(QVC)通常被认为是近期和长期量子硬件最有效的用途之一。优化这些电路的标准方法依赖于经典系统来计算每个优化步骤的新参数。然而,这个过程可能极具挑战性,因为导航的性质是指数缩放的复杂希尔伯特空间,贫瘠的高原,以及所有可预见的量子硬件中存在的噪声。虽然在实践中采用了各种优化算法,但这种选择往往缺乏理论或经验动机。为此,我们经验性地评估了许多常见的梯度和梯度自由优化器在各种优化任务上的潜力。这些任务包括基于经典和量子数据的优化例程。我们的评估是在无噪声和噪声模拟中进行的。大量的问题和优化评估产生强有力的经验指导选择优化QVC,目前缺乏。

英文摘要:

Quantum Variational Circuits (QVCs) are often claimed as one of the most potent uses of both near term and long term quantum hardware. The standard approaches to optimizing these circuits rely on a classical system to compute the new parameters at every optimization step. However, this process can be extremely challenging, due to the nature of navigating the exponentially scaling complex Hilbert space, barren plateaus, and the noise present in all foreseeable quantum hardware. Although a variety of optimization algorithms are employed in practice, there is often a lack of theoretical or empirical motivations for this choice. To this end we empirically evaluate the potential of many common gradient and gradient free optimizers on a variety of optimization tasks. These tasks include both classical and quantum data based optimization routines. Our evaluations were conducted in both noise free and noisy simulations. The large number of problems and optimizers evaluated yields strong empirical guidance for choosing optimizers for QVCs that is currently lacking.

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。

↑