Quantum State Sharing Of An Arbitrary Three-particle State And Remote Preparation Of Arbitrary Four-particle State

Quantum theory is the progress of physics across the times,so that people have a new understanding of the microscopic world.With the current social science progress and the quality of people's life is increasing,people in the twenty-first century,the demand for information is also increasing.Because of the wonderful nature of the quantum itself,in the category of information has a unique function,such as the information rate of operation,information security,as well as information capacity and detection accuracy and other aspects can break the barriers of today's classic information,so on Based on the quantum theory in the eighties,quantum physics and quantum science,which are combined with quantum mechanics and information science,are gradually formed and characterized by their unique properties.They are divided into quantum communication and quantum computing.In this paper,we will first propose a scheme for sharing an arbitrary unknown three-qubit state among three parties by utilizing three Bell pairs and GHZ states as a quantum channel.With the rapid development of quantum information theory,for the quantum information transmission process required for the classic resources,but also have to consider its consumption.Quantum remote state preparation(RSP)as a branch of quantum communication,just can save the required resource consumption,so since the remote preparation of the proposed,it has been widespread concern,a variety of preparation programs have been proposed to build a quantum remote preparation of the building.This paper presents a scheme for the remote preparation of any four-particle state in the form of hexadecimal basis measurement.The contents of this paper are as follows:The first chapter introduces the background and introduction of quantum information science,and describes the progress and value of quantum teleportation and quantum remote preparation and the superiority of quantum remote preparation.The second chapter is the basic theory of quantum mechanics and quantum information science.The basic properties of quantum bits are introduced emphatically.The concept of entangled states is described,and several common entangled forms are given.In the second two chapters of this chapter,we introduce the quantum teleportation and remote state preparation,and also introduce the advantages of the latter.The introduction of the whole chapter is for the next two chapters of the study pave the way.In the third chapter,we will first propose a scheme for sharing an arbitraryunknown three-qubit state among three parties by utilizing three Bell pairs and GHZ states as a quantum channel.In the fourth chapter,We present a scheme of remote preparation of four-particle state using two four-qubit cluster states as the quantum channel and construct sixteen orthogonal measurement basis.The fifth chapter summarizes the whole paper,and looks forward to the bright future of quantum communication.