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Erschienen in: Quantum Information Processing 9/2022

01.09.2022

Continuous-variable quantum teleportation with entanglement enabled via photon catalysis

verfasst von: Zhennan Wen, Yougen Yi, Xiaowen Xu, Ying Guo

Erschienen in: Quantum Information Processing | Ausgabe 9/2022

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Abstract

Continuous-variable quantum teleportation (CVQT) plays a vital role in practical quantum communications. However, the degradation of quantum signals, usually caused by the absorption and scattering of light in actual scenarios, has an influence on the transmission performance and hence hinders its implementations. In this paper, we propose a non-Gaussian approach to improve the performance of CVQT via photon catalysis through a lossy optical fiber channel. The photon catalysis-enabled scheme can be performed on both sides of Einstein–Podolsky–Rosen state prepared by the receiver, where it gives birth to the enhancement of entanglement of the system. Numerical simulations show that the performance of the photon catalysis-enabled CVQT has been improved in terms of both fidelity and maximal transmission distance. Moreover, the larger the squeezing parameter results in the more enhancement of the CVQT system. The results may provide a useful insight for the practical implementation of CVQT.

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Metadaten
Titel
Continuous-variable quantum teleportation with entanglement enabled via photon catalysis
verfasst von
Zhennan Wen
Yougen Yi
Xiaowen Xu
Ying Guo
Publikationsdatum
01.09.2022
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 9/2022
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-022-03666-8

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