论文标题
随机接收器量子通信
Random-Receiver Quantum Communication
论文作者
论文摘要
我们介绍了随机接收器量子通信的任务，其中发送者将量子消息传输到从n个空间分开各方列表中选择的接收器。接收器的选择是发件人未知的，但由N方所知道，他们通过交换经典消息来协调其行动。在正常情况下，随机接收器量子通信需要从发送者到n个接收器中的每个接收器的无噪声量子通信通道。相比之下，我们表明，如果此类通道的顺序由通过量子测量可访问的量子位控制，则可以通过破坏纠缠的通道进行随机接收器量子通信。值得注意的是，通过允许发件人和K <n当事方的任何子集之间的自由量子通信能够模仿这种现象。
We introduce the task of random-receiver quantum communication, in which a sender transmits a quantum message to a receiver chosen from a list of n spatially separated parties. The choice of receiver is unknown to the sender, but is known by the n parties, who coordinate their actions by exchanging classical messages. In normal conditions, random-receiver quantum communication requires a noiseless quantum communication channel from the sender to each of the n receivers. In contrast, we show that random-receiver quantum communication can take place through entanglement-breaking channels if the order of such channels is controlled by a quantum bit that is accessible through quantum measurements. Notably, this phenomenon cannot be mimicked by allowing free quantum communication between the sender and any subset of k<n parties.
