High-dimensional quantum key distribution using dispersive optics
Author(s)
Mower, Jacob; Zhang, Zheshen; Desjardins, Pierre; Lee, Catherine; Shapiro, Jeffrey H.; Englund, Dirk Robert; ... Show more Show less
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Show full item recordAbstract
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.
Date issued
2013-06Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology. Research Laboratory of ElectronicsJournal
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
ISSN
1050-2947
1094-1622