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Hamburg 2009 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster II

Q 30.32: Poster

Dienstag, 3. März 2009, 16:30–19:00, VMP 9 Poster

Security evaluation of a commercial Quantum Key Distribution System — •Carlos H. Wiechers M., Christoffer Wittmann, Dominique Elser, and Gerd Leuchs — Max-Planck-Institut für die Physik des Lichts, Institut für Optik, Information und Photonik, Universität Erlangen-Nürnberg, Günther-Scharowsky-Str. 1, Bau 24, 91058 Erlangen, Deutschland

Quantum Key Distribution (QKD) systems theoretically guarantee secure communication based on fundamental physical laws. First commercial products have become available during the last years. Practical implementations often deviate from their theoretical models which potentially opens security loopholes. We experimentally tested security aspects of a commercial QKD system. Here we present measurements of the mean photon number and parasitic modulations. Within the measurement error we find no discrepancy from the theoretically expected values.

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