Yu Yan, Zhao Nan
Opt Express. 2018 Oct 29;26(22):29296-29310. doi: 10.1364/OE.26.029296.
Broadcast and multi-cast communications are two important applications in quantum information science. Such applications guarantee the implementation of quantum information theory. In this paper, we propose two general schemes for the quantum broadcast and multi-cast communications to ensure that the central party (sender) can broadcast arbitrary single-qubit state to multiple receivers synchronously. Moreover, it is guaranteed that the information among the multiple receivers is different to satisfy the requirement in multi-cast communications. In particular, the proposed schemes indicate the probabilities, of which the multiple receivers obtain the quantum states successfully, could reach 1. We expect this works will shed some light for the prospective research on multi-party quantum communications and quantum cryptography.
广播通信和多播通信是量子信息科学中的两个重要应用。此类应用保证了量子信息理论的实现。在本文中，我们提出了两种用于量子广播通信和多播通信的通用方案，以确保中央方（发送方）能够将任意单比特状态同步广播给多个接收方。此外，还能保证多个接收方之间的信息不同，以满足多播通信的要求。特别地，所提出的方案表明，多个接收方成功获得量子态的概率可以达到1。我们期望这项工作将为多方量子通信和量子密码学的前瞻性研究提供一些启示。
