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arXiv 2006.01976quant-phcs.LG
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连续分布量子生成对抗网络的噪声鲁棒性及实验验证

Noise robustness and experimental demonstration of a quantum generative adversarial network for continuous distributions

University of Toronto(多伦多大学);Zapata Computing Inc.(Zapata Computing 公司);Vector Institute(向量研究所);Canadian Institute for Advanced Research (CIFAR)(加拿大高等研究院)

Abhinav Anand, Jonathan Romero, Matthias Degroote, Alán Aspuru-Guzik

摘要:

量子计算机中机器学习的潜在优势是文献中激烈讨论的话题。理论,数值和实验探索将很可能需要了解它的力量。已经提出了不同的算法来利用变分量子线路的概率性质进行生成建模。在本文中,我们采用了量子生成对抗网络(QGAN)的混合架构,并研究了它们在噪声存在下的鲁棒性。我们设计了一种简单的方法,将不同类型的噪声添加到量子发生器电路中,并对有噪声的混合量子生成对抗网络(HQGANs)进行了数值模拟,以学习连续的概率分布,并表明HQGANs的性能不受影响。我们还研究了不同参数对训练时间的影响,以减少算法的计算规模并简化其在量子计算机上的部署。然后,我们在Rigetti的Aspen-4 - 2Q-A量子处理单元上进行训练,并展示训练结果。我们的研究结果为在有噪声的中间尺度量子设备上进行不同量子机器学习算法的实验探索铺平了道路。

英文摘要:

The potential advantage of machine learning in quantum computers is a topic of intense discussion in the literature. Theoretical, numerical and experimental explorations will most likely be required to understand its power. There has been different algorithms proposed to exploit the probabilistic nature of variational quantum circuits for generative modelling. In this paper, we employ a hybrid architecture for quantum generative adversarial networks (QGANs) and study their robustness in the presence of noise. We devise a simple way of adding different types of noise to the quantum generator circuit, and numerically simulate the noisy hybrid quantum generative adversarial networks (HQGANs) to learn continuous probability distributions, and show that the performance of HQGANs remain unaffected. We also investigate the effect of different parameters on the training time to reduce the computational scaling of the algorithm and simplify its deployment on a quantum computer. We then perform the training on Rigetti's Aspen-4-2Q-A quantum processing unit, and present the results from the training. Our results pave the way for experimental exploration of different quantum machine learning algorithms on noisy intermediate scale quantum devices.

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。

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