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- Publisher Website: 10.1088/1367-2630/10/7/073018
- Scopus: eid_2-s2.0-47349118669
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Article: Quantum key distribution with triggering parametric down-conversion sources
Title | Quantum key distribution with triggering parametric down-conversion sources |
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Authors | |
Issue Date | 2008 |
Citation | New Journal of Physics, 2008, v. 10, article no. 073018 How to Cite? |
Abstract | Parametric down-conversion (PDC) sources can be used as triggered single photon sources in quantum key distribution (QKD). Recently, there have been several practical proposals of the decoy state QKD with triggering PDC sources. In this paper, we generalize the passive decoy state idea, originally proposed by Mauerer and Silberhorn. The generalized passive decoy state idea can be applied to cases where either threshold detectors or photon-number-resolving detectors are used. The decoy state protocol proposed by Adachi, Yamamoto, Koashi and Imoto (AYKI) can be treated as a special case of the generalized passive decoy state method. By simulating a recent PDC experiment, we compare various practical decoy state protocols with the infinite decoy state protocol and also compare the cases using threshold detectors and photon-number-resolving detectors. Our simulation result shows that with the AYKI protocol, one can achieve a key generation rate that is close to the theoretical limit of an infinite decoy state protocol. Furthermore, our simulation result shows that a photon-number-resolving detector appears to be not very useful for improving QKD performance in this case. Although our analysis is focused on QKD with PDC sources, we emphasize that it can also be applied to QKD setups with other triggered single photon sources. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. |
Persistent Identifier | http://hdl.handle.net/10722/285624 |
ISSN | 2023 Impact Factor: 2.8 2023 SCImago Journal Rankings: 1.090 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ma, Xiongfeng | - |
dc.contributor.author | Lo, Hoi Kwong | - |
dc.date.accessioned | 2020-08-18T04:56:13Z | - |
dc.date.available | 2020-08-18T04:56:13Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | New Journal of Physics, 2008, v. 10, article no. 073018 | - |
dc.identifier.issn | 1367-2630 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285624 | - |
dc.description.abstract | Parametric down-conversion (PDC) sources can be used as triggered single photon sources in quantum key distribution (QKD). Recently, there have been several practical proposals of the decoy state QKD with triggering PDC sources. In this paper, we generalize the passive decoy state idea, originally proposed by Mauerer and Silberhorn. The generalized passive decoy state idea can be applied to cases where either threshold detectors or photon-number-resolving detectors are used. The decoy state protocol proposed by Adachi, Yamamoto, Koashi and Imoto (AYKI) can be treated as a special case of the generalized passive decoy state method. By simulating a recent PDC experiment, we compare various practical decoy state protocols with the infinite decoy state protocol and also compare the cases using threshold detectors and photon-number-resolving detectors. Our simulation result shows that with the AYKI protocol, one can achieve a key generation rate that is close to the theoretical limit of an infinite decoy state protocol. Furthermore, our simulation result shows that a photon-number-resolving detector appears to be not very useful for improving QKD performance in this case. Although our analysis is focused on QKD with PDC sources, we emphasize that it can also be applied to QKD setups with other triggered single photon sources. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. | - |
dc.language | eng | - |
dc.relation.ispartof | New Journal of Physics | - |
dc.title | Quantum key distribution with triggering parametric down-conversion sources | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1088/1367-2630/10/7/073018 | - |
dc.identifier.scopus | eid_2-s2.0-47349118669 | - |
dc.identifier.volume | 10 | - |
dc.identifier.spage | article no. 073018 | - |
dc.identifier.epage | article no. 073018 | - |
dc.identifier.isi | WOS:000257524100001 | - |
dc.identifier.issnl | 1367-2630 | - |