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Proceedings Paper

Symmetric autocompensating quantum key distribution
Author(s): Zachary D. Walton; Alexander V. Sergienko; Lev B. Levitin; Bahaa E. A. Saleh; Malvin C. Teich
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Paper Abstract

We present quantum key distribution schemes which are autocompensating (require no alignment) and symmetric (Alice and Bob receive photons from a central source) for both polarization and time-bin qubits. The primary benefit of the symmetric configuration is that both Alice and Bob may have passive setups (neither Alice nor Bob is required to make active changes for each run of the protocol). We show that both the polarization and the time-bin schemes may be implemented with existing technology. The new schemes are related to previously described schemes by the concept of advanced waves.

Paper Details

Date Published: 24 August 2004
PDF: 4 pages
Proc. SPIE 5436, Quantum Information and Computation II, (24 August 2004); doi: 10.1117/12.543179
Show Author Affiliations
Zachary D. Walton, Boston Univ. (United States)
Alexander V. Sergienko, Boston Univ. (United States)
Lev B. Levitin, Boston Univ. (United States)
Bahaa E. A. Saleh, Boston Univ. (United States)
Malvin C. Teich, Boston Univ. (United States)


Published in SPIE Proceedings Vol. 5436:
Quantum Information and Computation II
Eric Donkor; Andrew R. Pirich; Howard E. Brandt, Editor(s)

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