Application Research With Quantum Entanglement State And Computer Encoding

At current stage,it is the "quantum communication" technology that has been the predominent technology to ensure the confidentiality and privacy of future information society communications.However,it is extremely likely to generate errors by "quantum communication" technology in the transmission process is very large,furthermore,the measurement of quantum information after transmission will also have distortion and other issues due to the limitations of practical factors and the fragility of quantum itself,therefore,it is pretty difficult to identify quantum states effectively and needs some methods to deal with this problem better.The entanglement verification method with quantum entanglement state and computer encoding is proposed in this paper,which is the computer encoding method with quantum entanglement state and least squares method as well as the computer verification method with quantum entanglement state and gradient Fourier series,respectively;the quantum encoding is used in computers and the transmission of quantum information is achieved through computers,thereby,completing the exchange of quantum information.Both methods use quantum entanglement to complete binary information "0" and "1" encoding,effectively verifying whether quantum information is in a strong entangled state,a weakly strong entangled state,a weakly entangled state or in an unentangled state according to constraints in one-toone and one-to-many transmission modes,and judging whether the quantum information transmission is effective according to the validity of each bit of information to achieve the measurement of the information.The simulation application part is applied in three aspects: one-to-one transmission,one-to-many transmission and entanglement state judgment after quantum information transmission;the Matlab simulation image is used to judge the result of the mathematical model,and the analysis results prove that the computer encoding method with the quantum entanglement state and least squares method has a small amount of calculation,more faster when verifying the quantum entanglement,and more convenient to use.The computer verification method with gradient Fourier series of four-qubit entanglement,although large in calculation,has high precision,high accuracy and small error,effectively judging whether the quantum information is in a strong entangled state,a weakly strong entangled state,a weakly entangled state or in an unentangled state after transmitting the quantum information.Both methods can effectively improve the accuracy during quantum communications,and both have broad application prospects.