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Quantum Information Processing

Entanglement-assisted noiseless linear amplification for arbitrary two-photon polarization–time-bin hyperentanglement

  • 01-08-2020
Published in:
Authors
Yu-Peng Li
Jie Zhang
Bao-Wen Xu
Lan Zhou
Wei Zhong
Yu-Bo Sheng
Published in
Quantum Information Processing | Issue 8/2020

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Abstract

Hyperentanglement is a quantum system which simultaneously entangles in several degrees of freedom. It is an important resource in quantum communication field. In practical application of hyperentanglement, the photon transmission loss is a big obstacle. In the paper, we propose an entanglement-assisted noiseless linear amplification (NLA) protocol to protect the two-photon polarization–time-bin hyperentanglement. Our protocol can effectively increase the fidelity of this hyperentanglement, while preserve its polarization and time-bin features. Our NLA protocol can be realized under current experimental condition and further extended to protect the general N-photon polarization–time-bin hyperentanglement in the multi-directional transmission process. This NLA protocol may have important applications in future hyperentanglement-based quantum communication network field.

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previous article Quantum witness of a damped and driven qubit by sequential intermediate measurements with uniform and nonuniform time intervals
next article Quantum Fisher information-based detection of genuine tripartite entanglement
Title
Entanglement-assisted noiseless linear amplification for arbitrary two-photon polarization–time-bin hyperentanglement
Authors
Yu-Peng Li
Jie Zhang
Bao-Wen Xu
Lan Zhou
Wei Zhong
Yu-Bo Sheng
Publication date
01-08-2020
Publisher
Springer US
Published in
Quantum Information Processing / Issue 8/2020
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-020-02762-x
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