Quantum teleportation with partially entangled states via noisy channels

Quantum teleportation with partially entangled states via noisy channels 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 $$kt$$ to decay with different velocities for different Pauli noises. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Quantum teleportation with partially entangled states via noisy channels

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Publisher
Springer US
Copyright
Copyright © 2013 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-013-0555-3
Publisher site
See Article on Publisher Site

Abstract

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 $$kt$$ to decay with different velocities for different Pauli noises.

Journal

Quantum Information ProcessingSpringer Journals

Published: Mar 7, 2013

References

  • Dense coding and teleportation with one-dimensional cluster states
    Wang, X-W; Shan, Y-G; Xia, L-X; Lu, M-W
  • Quantum tasks using six qubit cluster states
    Paul, N; Menon, JV; Karumanchi, S; Muralidharan, S; Panigrahi, PK

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