Journal article

Large-alphabet time-frequency entangled quantum key distribution by means of time-to-frequency conversion.

Abstract:: We introduce a novel time-frequency quantum key distribution (TFQKD) scheme based on photon pairs entangled in these two conjugate degrees of freedom. The scheme uses spectral detection and phase modulation to enable measurements in the temporal basis by means of time-to-frequency conversion. This allows large-alphabet encoding to be implemented with realistic components. A general security analysis for TFQKD with binned measurements reveals a close connection with finite-dimensional QKD protocols and enables analysis of the effects of dark counts on the secure key size.

Publication status:: Published

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APA Style

Nunn, J., Wright, L., Söller, C., Zhang, L., Walmsley, I., & Smith, B. (2013). Large-alphabet time-frequency entangled quantum key distribution by means of time-to-frequency conversion. Optics Express, 21(13), 15959–15973.

MLA Style

Nunn, J, et al. “Large-Alphabet Time-Frequency Entangled Quantum Key Distribution by Means of Time-to-Frequency Conversion.” Optics Express, vol. 21, no. 13, 2013, pp. 15959–73.

Chicago Style

Nunn, J, L Wright, C Söller, L Zhang, I Walmsley, and B Smith. 2013. “Large-Alphabet Time-Frequency Entangled Quantum Key Distribution by Means of Time-to-Frequency Conversion.” Optics Express 21 (13): 15959–73.
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Publisher copy:: 10.1364/oe.21.015959

Authors

+ Nunn, J More by this author

Role:: Author

+ Wright, L More by this author

Role:: Author

+ Söller, C More by this author

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+ Zhang, L More by this author

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+ Walmsley, I More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Atomic & Laser Physics
Role:: Author

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Publisher:: Optical Society of American (OSA)
Journal:: Optics express More from this journal
Volume:: 21
Issue:: 13
Pages:: 15959-15973
Publication date:: 2013-07-01
DOI:: 10.1364/oe.21.015959
EISSN:: 1094-4087
ISSN:: 1094-4087

Language:: English
Pubs id:: pubs:411203
UUID:: uuid:096c90c8-ee3d-43d4-b961-20dcf2b3bd33
Local pid:: pubs:411203
Source identifiers:: 411203
Deposit date:: 2013-11-16
ARK identifier:: ark:/29072/ora_096c90c8ee3d43d4b96120dcf2b3bd33

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Copyright date:: 2013

Licence:: Terms and Conditions of Use for Oxford University Research Archive

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