Quantum and Semi-Quantum key Distribution in Networks

被引：7
作者：
Bala, Rajni [1 ]
Asthana, Sooryansh [1 ]
Ravishankar, V. [1 ]
机构：
[1] IIT Delhi, Dept Phys, Delhi 110016, India
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2023年 / 62卷 / 05期
关键词：
Quantum network; Quantum cryptography; Semi-quantum cryptography; Layered quantum cryptography;
D O I：
10.1007/s10773-023-05351-7
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 generalize 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 realizable with current technology, thanks to the employment of MSS and many advances in the generation, manipulation, and measurement of higher-dimensional orbital angular momentum states of light.
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页数：25
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