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- Publisher Website: 10.1103/PhysRevA.98.042324
- Scopus: eid_2-s2.0-85055160102
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Article: Secure quantum communication in the presence of phase- and polarization-dependent loss
Title | Secure quantum communication in the presence of phase- and polarization-dependent loss |
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Authors | |
Issue Date | 2018 |
Citation | Physical Review A, 2018, v. 98, n. 4, article no. 042324 How to Cite? |
Abstract | © 2018 American Physical Society. Silicon photonics holds the promise of the miniaturization of quantum communication devices. Recently, silicon chip optical transmitters for quantum key distribution (QKD) have been built and demonstrated experimentally. Nonetheless, these silicon chips suffer substantial phase- and polarization-dependent loss (PDL) which, if unchecked, could compromise the security of QKD systems due to overestimation of the secret key rate. Here, first, we restore the security by regarding single photons without phase and polarization dependence as untagged and secure qubits. Next, by using a postselection technique, we implement a secure QKD protocol that provides a high key generation rate even in the presence of severe phase- and polarization-dependent loss. Our solution is simple to realize in a practical experiment, as it does not require any hardware modification. |
Persistent Identifier | http://hdl.handle.net/10722/285819 |
ISSN | 2023 Impact Factor: 2.6 2023 SCImago Journal Rankings: 1.081 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Li, Chenyang | - |
dc.contributor.author | Curty, Marcos | - |
dc.contributor.author | Xu, Feihu | - |
dc.contributor.author | Bedroya, Olinka | - |
dc.contributor.author | Lo, Hoi Kwong | - |
dc.date.accessioned | 2020-08-18T04:56:44Z | - |
dc.date.available | 2020-08-18T04:56:44Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Physical Review A, 2018, v. 98, n. 4, article no. 042324 | - |
dc.identifier.issn | 2469-9926 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285819 | - |
dc.description.abstract | © 2018 American Physical Society. Silicon photonics holds the promise of the miniaturization of quantum communication devices. Recently, silicon chip optical transmitters for quantum key distribution (QKD) have been built and demonstrated experimentally. Nonetheless, these silicon chips suffer substantial phase- and polarization-dependent loss (PDL) which, if unchecked, could compromise the security of QKD systems due to overestimation of the secret key rate. Here, first, we restore the security by regarding single photons without phase and polarization dependence as untagged and secure qubits. Next, by using a postselection technique, we implement a secure QKD protocol that provides a high key generation rate even in the presence of severe phase- and polarization-dependent loss. Our solution is simple to realize in a practical experiment, as it does not require any hardware modification. | - |
dc.language | eng | - |
dc.relation.ispartof | Physical Review A | - |
dc.title | Secure quantum communication in the presence of phase- and polarization-dependent loss | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevA.98.042324 | - |
dc.identifier.scopus | eid_2-s2.0-85055160102 | - |
dc.identifier.volume | 98 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | article no. 042324 | - |
dc.identifier.epage | article no. 042324 | - |
dc.identifier.eissn | 2469-9934 | - |
dc.identifier.isi | WOS:000447485200004 | - |
dc.identifier.issnl | 2469-9926 | - |