Research On Quantum Secure Communication Multivariate Factors Based On Overhead Environment

In a broad sense,quantum communication is the transmission of quantum states from one end to the other,which can be divided into Quantum Teleportation,Quantum Dense Coding and quantum secret communication based on quantum key distribution are the forms of quantum dense coding.At present,the so-called commercial quantum secret communication refers to Quantum Key Distribution.Using a laser to generate non-polarized light and attenuating by an attenuator,the generated single photon is transmitted by random numbers,based on the principle and reality.Because of its absolute security,quantum secret communication is widely used in the fields of communication,e-commerce,finance and military security.In this paper,the quantum key distribution device in overhead environment is studied.Firstly,the BB84 protocol,the power quantum channel,the common types of power quantum secure communication network and the main factors affecting the rate of code formation are analyzed comprehensively.A laboratory test system is built by using polarization coding based quantum key distribution technology.The measurement method and flow chart of the related parameters under the influence of various factors are designed,and the main indexes are tested and analyzed.The polarization state of light under the environment of overhead optical cable is studied.In this paper,a fast polarization feedback technique is proposed,which is applied to the practical network architecture,and a quantum key sharing is built.In the transmission system,the proposed method is verified by experiments to improve the rate of quantum key formation.The application of quantum secret communication in electric power industry is still in the initial stage.In the engineering practice of electric power industry,this paper analyzes the interference factors of the application of quantum secret communication technology in power industry,demonstrates the feasibility of quantum secret communication technology in power industry application,and puts forward the engineering test method of quantum secret communication power application.The results can provide reference for the application of quantum secret communication in power industry engineering practice.