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Düsseldorf 2007 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 6: Quanteninformation (Photonen und nichtklassisches Licht II)

Q 6.2: Talk

Monday, March 19, 2007, 14:15–14:30, 5L

Experimental Demonstration of Continuous Variable Cloning with a priori Information — •Metin Sabuncu1,2, Ulrik Andersen2, and Gerd Leuchs11Institut für Optik Information und Photonik, Max Planck Forschungsgruppe, Universität Erlangen-Nürnberg — 2Department of Physics, Technical University of Denmark

A state dependent cloning machine has the capability to produce clones, which have a higher average fidelity compared to the universal cloner. We experimentally realize a state dependent cloning machine consisting of only linear optical elements, homodyne detectors and feedforward electronics. Our machine generates clones of coherent states, which are chosen out of an apriori known alphabet, with an average fidelity which exceeds the universal coherent state cloning limit of 2/3.

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