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Proceedings Paper

Detection-time-bin-shift schemes for polarization encoding Quantum Key Distribution system
Author(s): Lijun Ma; Tiejun Chang; Alan Mink; Oliver Slattery; Barry Hershman; Xiao Tang
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Paper Abstract

Detection-time-bin-shift (DTBS) is a scheme that projects the measurement bases or measured photon values into detection time-bins and then time division multiplexes a single photon detector in a quantum key distribution (QKD) system. This scheme can simplify the structure of a QKD system, reduce its cost and overcome the security problems caused by the dead-time introduced self-correlation and the unbalanced characteristics of detectors. In this paper, we present several DTBS schemes for QKD systems based on attenuated laser pulses and entangled photon sources. We study the security issues of these DTBS schemes, especially the time-bin-shift intercept-resend attack and its countermeasures. A fiber-based DTBS QKD system has been developed and its results are presented in this paper.

Paper Details

Date Published: 5 September 2008
PDF: 10 pages
Proc. SPIE 7092, Quantum Communications and Quantum Imaging VI, 709206 (5 September 2008); doi: 10.1117/12.793722
Show Author Affiliations
Lijun Ma, National Institute of Standards and Technology (United States)
Tiejun Chang, National Institute of Standards and Technology (United States)
Alan Mink, National Institute of Standards and Technology (United States)
Oliver Slattery, National Institute of Standards and Technology (United States)
Barry Hershman, National Institute of Standards and Technology (United States)
Xiao Tang, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 7092:
Quantum Communications and Quantum Imaging VI
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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