多用户量子通信网络
Multiuser quantum communication networks
摘要：
研究了自旋与任意网络相互作用时的量子态转移。它表明，在这样一个系统在相当一般的条件下，我们可以期望一个近乎完美的状态转移。然后，我们分析了这个模型的泛化的情况下，许多网络用户，发送者可以选择哪一方，他想通过适当地调整他的本地磁场进行通信。我们还注意到，类似的想法可以用来创建耦合到网络的几个自旋之间的纠缠。
英文摘要：
We study a quantum state transfer between spins interacting with an arbitrary network of spins coupled by uniform XX interactions. It is shown that in such a system under fairly general conditions, we can expect a nearly perfect transfer of states. Then we analyze a generalization of this model to the case of many network users, where the sender can choose which party he wants to communicate with by appropriately tuning his local magnetic field. We also remark that a similar idea can be used to create an entanglement between several spins coupled to the network.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
