Multi-user network system for footballene structure and quantum key distribution method thereof

Abstract

The invention provides a multi-user network system for a footballene structure and a quantum key distribution method thereof. The multi-user network system comprises an ad hoc network structure of a C60 molecular structure, and the ad hoc network structure comprises 60 nodes; any adjacent nodes can directly communicate, and non-adjacent nodes can communicate through information forwarding of other nodes; each node can be used as a communication host and can also be used as a router, when the ad hoc network structure carries out quantum key communication: firstly forwarding routing information through the node, and determining an optimal path from a source node to a destination node; after determining the optimal path, carrying out reverse routing to determine a final path; and finally, carrying out entangled particle pair based on an entangled state through the selected final path; and the node is a user end. By adopting the multi-user network system provided by the invention, the number of users in the network is increased, the path finding efficiency is improved, the network resources are saved, the method of the entire scheme is applicable, the necessary devices are relatively mature, and the implementation property is relatively high.

Description

technical field [0001] The invention relates to the fields of quantum communication and self-organizing routing, in particular to a football-ene structured multi-user network system and a key distribution method thereof. Background technique [0002] Quantum cryptography is an emerging interdisciplinary subject combining information science, quantum mechanics and cryptography. It is the application of quantum mechanics and information science in cryptography. It mainly involves quantum physics, information science and computer science. Potential application value and great scientific significance. Quantum communication refers to a new type of communication method that uses quantum effects to transmit information. The quantum uncertainty theorem and the non-cloning theorem guarantee the absolute security of quantum cryptography in principle. [0003] Quantum teleportation uses the entangled quantum pairs shared by both the sender and the receiver to transmit quantum informat...

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Problems solved by technology

[0008] The above studies have laid the foundation for the design and analysis of quantum communication network protocols, but most of the work is based on wired quantum communication networks with simple network structures and addressing, such as point-to-point and star network structures, and it is relatively difficult to study wireless quantum communication networks with complex structures. Therefore, it is necessary to develop an easy-to-use, high-security, N-to-N structured network system, and a quantum key distribution system and method based on quantum teleportation

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