论文标题
量子和半量子 - 网络中的密钥分布
Quantum and semi--quantum key distribution in networks
论文作者
论文摘要
在本文中，我们利用了多维可分离状态（MSS）提供的潜力，用于在分层网络中的安全和同时分布密钥。我们介绍了量子和半量子密钥分布的协议，并讨论了它们针对各种窃听策略的鲁棒性。我们提供一个程序来确定必要的资源状态，以将这些协议推广到任意分层网络。最后，我们研究了给定层中状态的局部维度与可实现的关键率之间的相互关系。由于MSS的利用以及在发光，高维轨道角动量状态的生成，操纵和测量方面的许多进展，这些建议可以通过当前的技术实现。
In this paper, we utilize the potential offered by multidimensional separable states (MSS) for secure and simultaneous distributions of keys in a layered network. We present protocols for both quantum and semi-quantum key distribution and discuss their robustness against various eavesdropping strategies. We provide a procedure to identify the requisite resource states to generalise these protocols for arbitrary layered networks. Finally, we study the interrelation between the local dimensionalities of states and achievable key rates in a given layer. These proposals are realisable with current technology, thanks to employment of MSS and many advances in generation, manipulation and measurement of higher-dimensional orbital angular momentum states of light.
