论文标题
表征嘈杂的中间量子时代的任意量子网络
Characterizing arbitrary quantum networks in the noisy intermediate-scale quantum era
论文作者
论文摘要
如今，量子网络引起了人们的兴趣。简而言之，他们描述了边缘代表的量子源的分布到网络中节点代表的不同方面。在理想情况下，最近已经开发了一系列工具来表征网络的量子状态。但是，嘈杂的中间量子量子（NISQ）时代中量子网络的特征使它们大多数无效，并要求可行的工具。通过利用量子网络的纯度，协方差和拓扑结构，我们提供了一种系统的方法来解决NISQ时代的任意量子网络，这可能是嘈杂的，中间的，随机的，随机的和稀疏的。我们方法的一种应用是见证量子网络中基本要素的进度，例如多部分纠缠源和量子内存的质量。
Quantum networks are of high interest nowadays. In short, they describe the distribution of quantum sources represented by edges to different parties represented by nodes in the networks. Bundles of tools have been developed recently to characterize quantum states from the network in the ideal case. However, features of quantum networks in the noisy intermediate-scale quantum (NISQ) era invalidate most of them and call for feasible tools. By utilizing purity, covariance, and topology of quantum networks, we provide a systematic approach to tackle with arbitrary quantum networks in the NISQ era, which can be noisy, intermediate-scale, random, and sparse. One application of our method is to witness the progress of essential elements in quantum networks, like the quality of multipartite entangled sources and quantum memory.
