Quantum teleportation with partially entangled states via noisy channels

被引：0
作者：
Hua-Qiu Liang
Jin-Ming Liu
Shang-Shen Feng
Ji-Gen Chen
机构：
[1] Taizhou University,Department of Physics and Materials Engineering, College of Physics and Electronic Engineering
[2] East China Normal University,State Key Laboratory of Precision Spectroscopy, Department of Physics
来源：
Quantum Information Processing | 2013年 / 12卷
关键词：
Quantum teleportation; Noisy environments; Fidelity; EPR-type state;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Using a partially entangled EPR-type state as quantum channel, we investigate quantum teleportation (QT) of a qubit state in noisy environments by solving the master equation in the Lindblad form. We analyze the different influence for the partially entangled EPR-type channel and the EPR channel on the fidelity and the average fidelity of the QT process in the presence of Pauli noises. It is found that the fidelity depends on the type and the strength of the noise, and the initial state to be teleported. Moreover, the EPR channel is more robust than the partially entangled EPR-type channel against the influence of the noises. It is also found that the partially entangled EPR-type channel enables the average fidelity as a function of the decoherence parameter \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$kt$$\end{document} to decay with different velocities for different Pauli noises.
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页码：2671 / 2687
页数：16
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