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Average Fidelity of Teleportation in Quantum Noise Channel
Hao Xiang 1 #,Zhang Rong 1,Zhu Shiqun 2 *
1.School of Physical Science and Technology, Suzhou University
2.School of Physical Science and Technology-Suzhou University
*Correspondence author
#Submitted by
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Funding: 教育部博士点基金（No.课题编号: 20050285002）
Opened online:27 March 2006
Accepted by: none
Citation: Hao Xiang,Zhang Rong,Zhu Shiqun.Average Fidelity of Teleportation in Quantum Noise Channel[OL]. [27 March 2006] http://en.paper.edu.cn/en_releasepaper/content/5920
 
 
The effects of amplitude damping in quantum noise channels on average fidelity of quantum teleportation are analyzed in Bloch sphere representation for every stage of teleportation. When the quantum channels are varied from maximally entangled states to non-maximally entangled states, it is found that the effects of noise channels on the fidelity are nearly equivalent for strong quantum noise. The degree of damage on the fidelity of non-maximally entangled channels is smaller than that of maximally entangled channels. The average fidelity of values larger than $2\!/3$ may be one representation indirectly showing how much the unavoidable quantum noise is.
Keywords:average fidelty, teleportation, quantum noise channel, Bloch sphere
 
 
 

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