We present an efficient quantum router using a fully-engineered one-dimensional tight-binding array acting as quantum data bus. Quantum routing is achieved by weakly coupling the sender and the receivers to the data bus. We show that perfect transfer of a state between sender and a chosen receiver can be achieved via appropriately tuning the on-site energy applied on the site of the sender. A generalization of this model to the case of multiple receivers is then studied. The results show that the state is equally split between receivers who participate in communication. Moreover, that a similar idea can be used to create |$W$| state between all receivers is further emphasized.

中文翻译：

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一维紧密绑定数组中的高效路由量子信息

我们提出一种有效的量子路由器，它使用完全工程化的一维紧密绑定阵列作为量子数据总线。量子路由是通过将发送器和接收器弱耦合到数据总线来实现的。我们表明，可以通过适当地调整在发送者站点上施加的现场能量，来实现发送者与所选接收者之间状态的完美转换。然后研究该模型对多个接收器情况的一般化。结果表明，状态在参与通信的接收者之间平均分配。此外，可以使用类似的想法来创建| $ W $ | 进一步强调所有接收器之间的状态。