论文标题
通过线性量子通道进行的两次激发路由
Two-excitation routing via linear quantum channels
论文作者
论文摘要
网络中不同节点之间的量子信息是量子互联网的基本先决条件。尽管单位路由已在很大程度上得到解决，但到目前为止，尚未对许多Qubit的路由协议进行了深入研究。在ARXIV：1911.12211中的多引爆转移协议的基础上，我们将扰动转移方案应用于网络上的两次激发路由协议，在该方案中，多个两种频率块耦合到线性链中。我们同时解决接收器和链条之间可切换和永久耦合的情况。我们发现该协议允许在Fermionic网络上进行有效的两次示威路由，尽管对于旋转 - $ \ frac {1} {2} $网络，仅该网络的有限区域适用于高质量路由。
Routing quantum information among different nodes in a network is a fundamental prerequisite for a quantum internet. While single-qubit routing has been largely addressed, many-qubit routing protocols have not been intensively investigated so far. Building on the many-excitation transfer protocol in arXiv:1911.12211, we apply the perturbative transfer scheme to a two-excitation routing protocol on a network where multiple two-receivers block are coupled to a linear chain. We address both the case of switchable and permanent couplings between the receivers and the chain. We find that the protocol allows for efficient two-excitation routing on a fermionic network, although for a spin-$\frac{1}{2}$ network only a limited region of the network is suitable for high-quality routing.
