High-dimensional quantum key distribution using dispersive optics
Name
Mower-2013-High-dimensional quantum key distribution using dispersive optics.pdf
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Author(s)
Mower, Jacob
Zhang, Zheshen
Desjardins, Pierre
Lee, Catherine
Shapiro, Jeffrey H.
Englund, Dirk Robert
Date Issued
June 2013
Journal
Physical Review A
Publisher
American Physical Society
Citation
Mower, Jacob, Zheshen Zhang, Pierre Desjardins, Catherine Lee, Jeffrey H. Shapiro, and Dirk Englund. “High-dimensional quantum key distribution using dispersive optics.” Physical Review A 87, no. 6 (June 2013). © 2013 American Physical Society
Version
Final published version
Abstract
We propose a high-dimensional quantum key distribution (QKD) protocol that employs temporal correlations of entangled photons. The security of the protocol relies on measurements by Alice and Bob in one of two conjugate bases, implemented using dispersive optics. We show that this dispersion-based approach is secure against collective attacks. The protocol, which represents a QKD analog of pulse position modulation, is compatible with standard fiber telecommunications channels and wavelength division multiplexers. We describe several physical implementations to enhance the transmission rate and describe a heralded qudit source that is easy to implement and enables secret-key generation at >4 bits per character of distilled key across over 200 km of fiber.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.87.062322
