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Applied Mechanics and Materials

Network Seepage Flow Research Based on Complex Network

Xiao Zhi Wang, Zhi Gang Liu

Published Oct 1, 2014• 1 citation
Publisher

Abstract

Quantum communication is the information network communication cross technology developed in recent years. And it is a new communication technology by using network effects of quantum to carry out information transmission. Quantum communication is closely relative with quantum cryptography, quantum teleportation and quantum transport protocol. Quantum communication belongs to the complex network communication. Quantum bit is the basic unit of the network transmission. The wide range of application of quantum complex network is mainly the preparation of remote distance network seepage flow. In the process of quantum complex network information transmission, it is easily susceptible to environmental disturbances, so that it decreases the signal. This paper puts forward a scheme of solving quantum complex network transmission - network seepage flow. Traditional network seepage flow protocol scheme is the CEP network seepage flow agreement, but this solution has a certain limitation. The paper carries out the "target-swap" operation to CEP network seepage flow protocol, and obtains the QEP seepage flow protocol, and the superiority of this kind network seepage flow is proved through experimental network.

DOI
10.4028/www.scientific.net/amm.608-609.392

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Quantum communication is the information network communication cross technology developed in recent years. And it is a new communication technology by using network effects of quantum to carry out information transmission. Quantum communication is closely relative with quantum cryptography, quantum teleportation and quantum transport protocol. Quantum communication belongs to the complex network communication. Quantum bit is the basic unit of the network transmission. The wide range of application of quantum complex network is mainly the preparation of remote distance network seepage flow. In the process of quantum complex network information transmission, it is easily susceptible to environmental disturbances, so that it decreases the signal. This paper puts forward a scheme of solving quantum complex network transmission - network seepage flow. Traditional network seepage flow protocol scheme is the CEP network seepage flow agreement, but this solution has a certain limitation. The paper carries out the "target-swap" operation to CEP network seepage flow protocol, and obtains the QEP seepage flow protocol, and the superiority of this kind network seepage flow is proved through experimental network.
In the paper, the analysis of percolation of quantum entanglement in complex networks was given, including the preparation of long-range quantum entangled states in two-dimensional complex networks of small word. A scheme of quantum entanglement percolation optimization of quantum communication network is proposed. By introducing the localized “target-swap” quantum operation into the classical entanglement percolation protocol (CEP), the quantum entanglement percolation protocol is formed. It also shows that the quantum entanglement percolation protocol (QEP) is significantly better than CEP in the performance of long-range entanglement preparation in two-dimensional complex networks of small world.
In view of the current network security situation, the basic principles and implementation method of quantum cryptography are studied.Considering the present situation of quantum cryptography communication technology and launch vehicle range, a network scheme is designed based on quantum cryptography communication network, and several miniature tests are carried out.From the results of the validation, network performance test results can meet communication support requirements of the rocket launch test in launch vehicle range, different types of information transmission is normal, and the quantum key technical indicators meet the requirements of the equipment.So the network scheme is a feasible solution.
Quantum entanglement swapping can be used to establish reliable quantum remote transmission channel so as to realize transmission of quantum states. However, the highly stable quantum network is required in the quantum channels when using quantum entanglement swapping, otherwise it will waste a lot of entanglement resources. In order to save entanglement resources, we have to put forward a kind of quantum communication network transmission protocol based on packet switching, according to the theory of quantum teleportation. Firstly, the principle of packet switching in computer network is introduced. Next we describe the implementation process of quantum network transmission protocols which are based on entanglement swapping and packet switching. We then analyze the reliability, security and utilization rate of entanglement of the protocol we have proposed. And after that the quantitative relationship about the number of entanglement quantum states, the number of routers and link error rates are calculated. Finally, we compare these two transmission protocols. Simulation results show that the number of entanglement for these two protocols is equal without consideration of the link errors. When taking them into account, the packet switching transmission protocol can save numbers of entanglement resources obviously. In addition, with the increase of number of routers and the rise in link error rates, the quantum communication network transmission protocol based on packet switching will need less entanglement resources than that based on entanglement swapping. Therefore, when the quantum transmission network is not stable, the packet switching transmission protocol has a better transmission performance, and it can be applied to the future construction of quantum network.
Long-distance entanglement establishment is investigated on small-world complex network topologies.The quantum entanglement percolation(QEP) protocol is proposed to optimize networked quantum communications.If the additional local target-swap quantum operations are performed in the classical entanglement percolation(CEP) protocol,the QEP can be obtained.The QEP has great advantage over CEP with respect to the efficiency of long-distance entanglement establishment.The advantage may be due to the changes of the degree distributions in the QEP.
A new network technology solution combined quantum private communicate network with classical network was proposed,which adopts flow control and data distribution strategy based on time slice rotation principle.It solved the problems that quantum private communicate network's backbone transmission system's quantum key pool's capacity is small and the key generation rate is slower.We applied the strategy to monitoring the outgoing interface of quantum private communicate network,with the experimental results showing the effectiveness and feasibility of the proposed method.
Quantum information science has altered the concept of the method of processing and transporting information through the laws of quantum mechanics. Quantum entanglement is one of its basic properties, which is instrumental to non-classical correlations between spatially separate particles. New quantum communication networks and quantum computing systems distributed are based on these interrelations. In this paper, quantum information flow dynamics of multi-particle entangled networks with particular emphasis to the processes governing information transmission, redistribution and maintenance of coupled quantum nodes are discussed. The paper discloses the way in which the entangled structures comprising multiple entities can help in facilitating the sharing of information beyond the capabilities of the classical communication systems. Complex entangled structures are analyzed in terms of the channels through which the flow of quantum information is analyzed in respect to the theoretical models of multi-qubit systems and networked quantum channels. The way the communication between the particles influences the coherence, strength of correlation, as well as the stability of the whole network in general, is given particular attention. The effect of environmental noise and decoherence which can cause a break of entanglement and the loss of efficiency in quantum information exchange is also considered in the analysis. Moreover, the article discusses the application of network topology in order to establish the behaviour of entangled systems. The impact of the structural changes on information transfer reliability and speed is determined by the evaluation of the various forms of quantum nodes and connections. These findings suggest that entangled networks structured appropriately will be able to enhance stability of quantum communication and assist in distributing quantum resources more efficiently. Overall, the present research can be deemed as part of the bigger initiative of scaling up quantum communication infrastructures. The research builds knowledge in the sense that it provides an insight into the behavior of information in multi-particle entangled networks with important considerations being made as to the advancement of robust quantum networks which can be used in future to support the realization of future applications in the area of secure communication, distributed computing and the future developments in information processing technologies.