论文标题
量子网络通过与控制系统的纠缠增强
Quantum networks boosted by entanglement with a control system
论文作者
论文摘要
量子设备的网络对其配置有一致的控制，在量子信息处理中具有有希望的优势。到目前为止，对这些优势的调查假设控制系统最初与网络处理的数据不相关。在这里，我们探讨了数据和控制之间的量子相关性的功能，显示了两个通信任务，这些任务可以在且仅当发送者与第三方（“``Controler''''）的事先纠缠（控制网络配置）的事先纠缠时，可以通过信息搜索渠道完成。第一个任务是在不泄漏信息到控制器的情况下传输经典消息。第二个任务是与接收器建立双方纠缠，或更一般而言，建立具有许多空间分离的接收器的多部分纠缠。
Networks of quantum devices with coherent control over their configuration offer promising advantages in quantum information processing. So far, the investigation of these advantages assumed that the control system was initially uncorrelated with the data processed by the network. Here, we explore the power of quantum correlations between data and control, showing two communication tasks that can be accomplished with information-erasing channels if and only if the sender shares prior entanglement with a third party (the ``controller'') controlling the network configuration. The first task is to transmit classical messages without leaking information to the controller. The second task is to establish bipartite entanglement with a receiver, or, more generally, to establish multipartite entanglement with a number of spatially separated receivers.
