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Acta Physica Sinica

Poisson survival model of quantum entanglement signaling network and fidelity analysis

Min Nie, Zhang Lin, Liu Xiaohui

Published Jan 1, 2013• 3 citations
Publisher

Abstract

Quantum signaling states have decoherence because of the environment during the transmission. It causes signaling damage and thus will have impact on building high survivability quantum entanglement signaling network. In order to study the influence deeply, Poisson damage model of quantum signaling network is established. First, disaster magnitude is defined base on signaling fidelity. Second, average damage signaling quantum bits and survival function of quantum signaling network is put forward by basic quantum theory. At last, research on the signaling damage repair strategy and simulation is analyzed. Simulation results show that increasing of disaster magnitude will greatly reduce the signaling network survivability. However, increasing the nodes and controlling signaling damage caps may improve survivability. The repair strategy which costs small number of cycles can rapidly increase the signaling fidelity from 0.6 to 0.9 and the survival function of the signaling network from 0.4 to 0.9.

DOI
10.7498/aps.62.230303

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Quantum signaling states have decoherence because of the environment during the transmission. It causes signaling damage and thus will have impact on building high survivability quantum entanglement signaling network. In order to study the influence deeply, Poisson damage model of quantum signaling network is established. First, disaster magnitude is defined base on signaling fidelity. Second, average damage signaling quantum bits and survival function of quantum signaling network is put forward by basic quantum theory. At last, research on the signaling damage repair strategy and simulation is analyzed. Simulation results show that increasing of disaster magnitude will greatly reduce the signaling network survivability. However, increasing the nodes and controlling signaling damage caps may improve survivability. The repair strategy which costs small number of cycles can rapidly increase the signaling fidelity from 0.6 to 0.9 and the survival function of the signaling network from 0.4 to 0.9.
In order to build a quantum signaling network with high survivability, quantum channel survival function and survivability of signaling network have been proposed based on the concept of fidelity. The survival coefficient in optical fiber or free space is analyzed, fidelity in noisy quantum channel with the decoherence mechanisms is calculated and survival function test model is proposed. Simulation analysis shows that, by reducing the quantum state transition rate, controlling fiber attenuation coefficient and atmospheric attenuation coefficient, decreasing the time of quantum states evolution, and setting quantum repeaters, we can construct a high survivability of quantum channel and provide a theoretical foundation for the formulation of quantum entanglement signaling network standard.
A quantum signaling transmission scheme based on quantum entanglement,local unitary operation and teleportation is proposed for signaling transmission in a multiuser quantum signaling network with multi-stage hierarchy level network topology.The analytical result shows that the scheme is secure in case of eavesdropping attack including intercept-measure-resend attacks,intercept-replace and adding-ancilla attacks.Consequently,the probability model of quantum signaling transmission damage probability and the repair strategy of the damage of quantum signaling are presented,and the probability model in noise background and non-ideal traditional channel has very low complexity.
Signaling is an essential and important component in quantum communication. However, the current research on the quantum signaling transmission computing model has not yet commenced. In this paper, based on the background of noise, the transmission damage probability model of quantum signaling is presented. The relationship between the fidelity of signaling and the samples sent is studied. The simulation results show that, when the state of quantum entanglement is the maximum state of entanglement, the fidelity is 1. The fidelity is increased with the number of samples and limited to 1. For the signaling standards of the future quantum communication system, this study has good technical support role.
To research the problem of transmission fidelity of multiuser quantum signaling under noisy background,the definition and transmission method of signaling fidelity were presented.The relationship between entanglement degree and signaling successful transmission ratio was analyzed.The computing model of quantum entanglement signaling was put forward,and the simulation for signaling transmission fidelity was achieved finally.The results show that the interference of environment noise to quantum signaling channel entanglement degree restricts the distance and efficiency of the signaling transmission.And the signaling fidelity is convergence gradually with the increase of the sample's number.To insure entanglement signaling transmission precision,the sample's number should be adjusted properly according to the communication distance.
A quantum signaling transmission system of multi-user is presented,and the transmission process signaling channel is introduced.The damage model maliciously attacked by the third party is analyzed in the transmission process,and the idea of decoy state is introduced to the safety of quantum signaling in direct communication.To overcome photon number splitting(PNS) attack,light pulses are sent using different light intensities,which also improve the safety of the signal transmission.The simulation result shows that repair strategy of multi-user quantum signaling transmission system being attacked can effective detect the PNS attack,and increase distance of security transmission,to ensure the signaling transmission process safely and effectively.
Aim To design multiuser quantum signaling network for the purpose of interworking with traditional communication network.Methods A multiuser quantum signaling network with multi-stages hierarchy level network topology is proposed and a quantum signaling system is introduced.Multi-classes quantum signaling transmission is based on quantum teleportation and entanglement swapping.Results SBER(Signaling Bit Error Rate) decreases with higher quantum channel coefficient or lower base angle offset,the transmission damage is mainly due to the quantum noise in the condition of base angle offset is below 6 degree,the relay mechanism can achieve higher reliability by decreasing SBER(Signaling Bit Error Rate).Conclusion The network has plain structure,high expandability,robust reliability.The mechanism of return route and relay can reduce the interference of quantum channel.