Environment-assisted entanglement restoration and improvement of the fidelity for quantum teleportation

Environment-assisted entanglement restoration and improvement of the fidelity for quantum... Three environment-assisted schemes are proposed to suppress the amplitude damping decoherence for entanglement distribution via weak measurement reversal. Based on the measurement of environment and appropriate weak measurement reversal operations, the initial entangled state can be recovered between two separated participants with high success probability and fidelity. In some specific cases, the restored optimal concurrence could reach up to 1 without requirement of the reversing measurement. Moreover, we concretely show that the proposed environment-assisted entanglement restoration can be applied to quantum teleportation to significantly improve the fidelity of the teleported state. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Environment-assisted entanglement restoration and improvement of the fidelity for quantum teleportation

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Publisher
Springer US
Copyright
Copyright © 2015 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/s11128-015-1111-0
Publisher site
See Article on Publisher Site

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