Broadcasting communication technique of quantum network

Abstract

The invention provides a novel quantum broadcasting communication scheme. Only one difference from the transmitting party in the traditional quantum broadcasting protocol is as follows: the scheme realizes that two transmitting parties simultaneously transmit the united confidential information of the two parties to multiple legal receiving parties. In the scheme, the transmitting parties respectively share the multiparticle GHZ state with all the receiving parties, and then the transmitting parties carry out the single particle measurement and publish the check bit; after carrying out inaccurate Bell measurement, each receiving party simultaneously acquires the united confidential information of the transmitting parties according to the result and the check bit; the quantum characteristic ensures the unconditional safety of the protocol; and the application of the induced quantum photon leads the protocol to have detectability on bugging. The communication model can be applied to the fields of the safe democratic decision in a quantum network, the united signal control and the like. In the implementing process of the scheme, the transmitting party only needs to carry out single particle measurement, the receiving party carries out Bell measurement, but only partial Bell state measuring result needs to be distinguished, all the measuring results needs to be inaccurately distinguished, thus the scheme is easy to implement in the quantum network.

Description

1. Technical field [0001] The invention relates to the field of network communication, more specifically, the invention provides a quantum broadcast communication implementation scheme based on GHZ state. 2. Background technology [0002] Quantum communication network is one of the hot research topics in the world. Europe, North America and Japan have invested a lot of manpower and material resources in research, and have proposed various network topologies and addressing methods. Based on the actual development needs of the research and construction of quantum communication networks, when an overall quantum communication network has been realized, theoretical research on how to effectively utilize quantum network resources is particularly important. Recently, the theory and technology of quantum network communication has attracted people's attention and developed into a research topic in the field of quantum computing and information. [0003] Quantum broadcast communicat...

AI Technical Summary

Problems solved by technology

In fact, in 2006, Man et al. [2] proposed a QSDC protocol for a single sender to N receivers, but they did not propose the concept of QBC

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