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Article: Entropic uncertainty relations and the measurement range problem, with consequences for high-dimensional quantum key distribution
Title | Entropic uncertainty relations and the measurement range problem, with consequences for high-dimensional quantum key distribution |
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Authors | |
Issue Date | 2019 |
Citation | Journal of the Optical Society of America B: Optical Physics, 2019, v. 36, n. 3, p. B65-B76 How to Cite? |
Abstract | © 2019 Optical Society of America. The measurement range problem, where one cannot determine the data outside the range of the detector, limits the characterization of entanglement in high-dimensional quantum systems when employing, among other tools from information theory, the entropic uncertainty relations. Practically, the measurement range problem weakens the security of entanglement-based large-alphabet quantum key distribution (QKD) employing degrees of freedom including time-frequency or electric field quadrature. We present a modified entropic uncertainty relation that circumvents the measurement range problem under certain conditions and apply it to well-known QKD protocols. For time-frequency QKD, although our bound is an improvement, we find that high channel loss poses a problem for its feasibility. In homodyne-based continuous variable QKD, we find our bound provides a quantitative way to monitor for saturation attacks. |
Description | Accepted manuscript is available on the publisher website. |
Persistent Identifier | http://hdl.handle.net/10722/285830 |
ISSN | 2023 Impact Factor: 1.8 2023 SCImago Journal Rankings: 0.504 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Bourassa, J. Eli | - |
dc.contributor.author | Lo, Hoi Kwong | - |
dc.date.accessioned | 2020-08-18T04:56:45Z | - |
dc.date.available | 2020-08-18T04:56:45Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Journal of the Optical Society of America B: Optical Physics, 2019, v. 36, n. 3, p. B65-B76 | - |
dc.identifier.issn | 0740-3224 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285830 | - |
dc.description | Accepted manuscript is available on the publisher website. | - |
dc.description.abstract | © 2019 Optical Society of America. The measurement range problem, where one cannot determine the data outside the range of the detector, limits the characterization of entanglement in high-dimensional quantum systems when employing, among other tools from information theory, the entropic uncertainty relations. Practically, the measurement range problem weakens the security of entanglement-based large-alphabet quantum key distribution (QKD) employing degrees of freedom including time-frequency or electric field quadrature. We present a modified entropic uncertainty relation that circumvents the measurement range problem under certain conditions and apply it to well-known QKD protocols. For time-frequency QKD, although our bound is an improvement, we find that high channel loss poses a problem for its feasibility. In homodyne-based continuous variable QKD, we find our bound provides a quantitative way to monitor for saturation attacks. | - |
dc.language | eng | - |
dc.relation.ispartof | Journal of the Optical Society of America B: Optical Physics | - |
dc.title | Entropic uncertainty relations and the measurement range problem, with consequences for high-dimensional quantum key distribution | - |
dc.type | Article | - |
dc.description.nature | link_to_OA_fulltext | - |
dc.identifier.doi | 10.1364/JOSAB.36.000B65 | - |
dc.identifier.scopus | eid_2-s2.0-85062450239 | - |
dc.identifier.volume | 36 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | B65 | - |
dc.identifier.epage | B76 | - |
dc.identifier.eissn | 1520-8540 | - |
dc.identifier.isi | WOS:000460117900010 | - |
dc.identifier.issnl | 0740-3224 | - |