Total probability arbitrary multiparty JRSP method

Abstract

The invention provides a total probability arbitrary multiparty JRSP method. According to the method, a core sender constructs a real part measurement base in accordance with real part information of quantum states needing to be prepared, particles owned by the core sender are measured, and measuring results are sent to corresponding auxiliary senders and receivers through classical channels; all the auxiliary senders construct imaginary part measurement bases by the adoption of the measuring results and owned imaginary part information, particles owned by the auxiliary senders are measured respectively, and measuring results are sent to the receivers through classical channels; at last, the receivers conduct certain unitary operation on the particles in hands according to the measuring results of the core sender and the measuring results of all the auxiliary senders, and the particles needing to be prepared are obtained. By means of the total probability arbitrary multiparty JRSP method, the methods of quantum information fragmentation, quantum entanglement and quantum measurement are used, arbitrary multiparty JRSP is achieved, and the method is safe and reliable, flexible and universal, and good in practical value.

Description

technical field [0001] The invention belongs to the technical field of communication, and specifically refers to a method for remote joint preparation of any multi-party quantum states with full probability. Background technique [0002] As we all know, current communication channels transmit digital or analog signals. Due to the non-ideal frequency response characteristics of the channel, noise interference and other interference mixed in when the signal is transmitted through the channel, the transmitted signal is damaged and the received signal waveform is distorted or the received digital signal symbol is wrong. For this kind of interference, there are currently two ways to ensure the correct transmission of the channel: one is to improve the performance and quality of lines and transmission equipment, such as using optical fibers; the other is to use error control strategies, such as cyclic redundancy check method Wait. However, improving lines and equipment requires ...

AI Technical Summary

Problems solved by technology

As far as the current research is concerned, most of the JRSP schemes only stay on the joint preparation of two parties, and there are few reports on the remote preparation of arbitrary multi-party quantum states. The reason is that it is difficult to find an appropriate general measurement base and a correct step-by-step preparation strategy.

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