Darmstadt 2008 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 28: Poster Quanteninformation

Q 28.8: Poster

Dienstag, 11. März 2008, 16:30–19:00, Poster C2

Towards Einstein-Podolsky-Rosen quantum channel multiplexing — •Aiko Samblowski, Boris Hage, and Roman Schnabel — Institut für Gravitationsphysik, Leibniz Universität Hannover und Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Callinstraße 38, 30167 Hannover, Germany

We present an experiment to utilize a single broadband squeezed field as a source for a large number N of quantum channels, based on distributed Einstein-Podolsky-Rosen (EPR) entangled states. Each of those channels can serve as a resource for independent quantum communication protocols. N-fold channel multiplexing can be realized by accessing 2N squeezed modes at different Fourier frequencies of a single squeezed field. We demonstrate the experimental implementation of the N=1 case through the interference of two squeezed modes.