arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.06004quant-ph
收藏

变分量子玻尔兹曼机

Variational Quantum Boltzmann Machines

Christa Zoufal, Aurélien Lucchi, Stefan Woerner

摘要:

本文提出了一种新的量子玻尔兹曼机的实现方法。所需的吉布斯状态的准备,以及损失函数的分析梯度的评估是基于变分量子虚时演化,一种技术,通常用于基态计算。与现有方法相比,该实施方式促进了针对任意参数化哈密尔顿算子的具有实际损失函数的梯度的近期兼容QBM训练,所述哈密尔顿算子不一定必须是完全可见的,但也可以包括隐藏单元。变分吉布斯态近似的数值模拟和实验上运行的IBM量子提供的实际量子硬件证明。此外,我们说明了这种变分QBM方法的生成和判别式学习任务,使用数值模拟的应用。

英文摘要:

This work presents a novel realization approach to Quantum Boltzmann Machines (QBMs). The preparation of the required Gibbs states, as well as the evaluation of the loss function's analytic gradient is based on Variational Quantum Imaginary Time Evolution, a technique that is typically used for ground state computation. In contrast to existing methods, this implementation facilitates near-term compatible QBM training with gradients of the actual loss function for arbitrary parameterized Hamiltonians which do not necessarily have to be fully-visible but may also include hidden units. The variational Gibbs state approximation is demonstrated with numerical simulations and experiments run on real quantum hardware provided by IBM Quantum. Furthermore, we illustrate the application of this variational QBM approach to generative and discriminative learning tasks using numerical simulation.

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。

↑