A quantum walk control plane for distributed quantum computing in quantum networks
A quantum walk control plane for distributed quantum computing in quantum networks
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DOI：
10.1109/qce52317.2021.00048
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发表时间：
2021-06
期刊：
影响因子：
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通讯作者：
M. G. Andrade;W. Dai;S. Guha;D. Towsley
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文献类型：
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作者：
M. G. Andrade;W. Dai;S. Guha;D. Towsley
量子网络是量子处理器之间通过量子通道相互作用形成的复杂系统。与经典计算机网络类似，量子网络允许在量子计算机之间分配量子计算。在这项工作中，我们描述了一种在量子网络中执行分布式量子计算的量子行走协议。该协议使用量子行走作为量子控制信号来执行分布式量子操作。我们考虑离散时间创造的量子行走模型的推广，该模型解释了网络图中的量子行走系统与网络节点内的量子寄存器之间的交互。该协议从逻辑上捕获了分布式量子计算，抽象了硬件实现以及通过通道传输量子信息。控制信号传输映射到步行者系统在网络上的传播，而控制层和量子寄存器之间的交互则嵌入到硬币运营商的应用程序中。我们演示了如何使用量子步行者系统执行分布式 CNOT 操作，这表明了分布式量子计算协议的通用性。此外，我们将该协议应用于量子网络中的纠缠分布任务。
Quantum networks are complex systems formed by the interaction among quantum processors through quantum channels. Analogous to classical computer networks, quantum networks allow for the distribution of quantum computation among quantum computers. In this work, we describe a quantum walk protocol to perform distributed quantum computing in a quantum network. The protocol uses a quantum walk as a quantum control signal to perform distributed quantum operations. We consider a generalization of the discrete-time coined quantum walk model that accounts for the interaction between a quantum walker system in the network graph with quantum registers inside the network nodes. The protocol logically captures distributed quantum computing, abstracting hardware implementation and the transmission of quantum information through channels. Control signal transmission is mapped to the propagation of the walker system across the network, while interactions between the control layer and the quantum registers are embedded into the application of coin operators. We demonstrate how to use the quantum walker system to perform a distributed CNOT operation, which shows the universality of the protocol for distributed quantum computing. Furthermore, we apply the protocol to the task of entanglement distribution in a quantum network.