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Conferences > QELS > 2010 > QThI > QThI4

Witnessing effective entanglement over 2km of optical fiber

Christoffer Wittmann, Josef Fürst, Carlos Wiechers, Dominique Elser, Hauke Häseler, Norbert Lütkenhaus, and Gerd Leuchs

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Abstract

We present a continuous-variable QKD system using heterodyne detection. We experimentally determine channel characteristics and compare them to bounds of our entanglement criterion. For the first time, the local oscillator is considered in this verification.

© 2010 Optical Society of America

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