Protection of Telecloning Over Noisy Channels with Environment-Assisted Measurements and Weak Measurements

We propose a scheme for protecting and improving the fidelity of quantum telecloning over the amplitude damping (AD) channels. By using the environment-assisted measurements and weak measurement reversals (WMR), the entanglement of quantum channel among three separated participants can be recovered...

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Bibliographic Details
Published in:International journal of theoretical physics 2018-04, Vol.57 (4), p.1235-1244
Main Authors: Wu, He-Jin, Jin, Zhao, Zhu, Ai-Dong
Format: Article
Language:English
Subjects:
Channels
Damping
Elementary Particles
Entanglement
Mathematical and Computational Physics
Physics
Physics and Astronomy
Quantum Field Theory
Quantum Physics
Theoretical
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Summary:We propose a scheme for protecting and improving the fidelity of quantum telecloning over the amplitude damping (AD) channels. By using the environment-assisted measurements and weak measurement reversals (WMR), the entanglement of quantum channel among three separated participants can be recovered probabilistically. Particularly, when the strength of WMRs is equal to the damping rate of the AD channels, the fidelity of the telecloning can be restored to the maximum value with a certain successful probability.
ISSN:0020-7748
1572-9575
DOI:10.1007/s10773-017-3653-7