Lim, Youngrong, Joo, Jaewoo, Spiller, Timothy P. orcid.org/0000-0003-1083-2604 et al. (1 more author) (2016) Loss-resilient photonic entanglement swapping using optical hybrid states. Physical Review A. 062337. pp. 1-7. ISSN 1094-1622
Abstract
We propose a scheme of loss-resilient entanglement swapping between two distant parties via an imperfect optical channel. In this scheme, two copies of hybrid entangled states are prepared and the continuous-variable parts propagate through lossy media. In order to perform successful entanglement swapping, several different measurement schemes are considered for the continuous-variable parts such as single-photon detection for ideal cases and a homodyne detection for practical cases. We find that the entanglement swapping using hybrid states with small amplitudes offers larger entanglement than the discrete-variable entanglement swapping in the presence of large losses. Remarkably, this hybrid scheme still offers excellent robustness of entanglement to the detection inefficiency. Thus, the proposed scheme could be used for the practical quantum key distribution in hybrid optical states under photon losses.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2016 American Physical Society. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details. |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 15 Mar 2017 17:00 |
Last Modified: | 16 Oct 2024 13:39 |
Published Version: | https://doi.org/10.1103/PhysRevA.94.062337 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevA.94.062337 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:113674 |
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