Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.82: Poster
Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof
Error correction for CV-QKD with entangled squeezed states — •Jörg Duhme1, Reinhard Werner1, and Fabian Furrer2 — 1Institut für theoretische Physik, Leibniz Universität Hannover — 2Department of Physics, University of Tokio
Common error corretion schemes like for example cascade and LDPC codes have been investigated and optimized for years. Since the alphabet on which these schemes operate has dimension two (that is the classical bit) they are not suited for the post processing required by the protocol proposed by Furrer et al. This protocol being secure against coherent attacks is designed for entanglement based QKD using squeezed gaussian states. But the error correction schemes mentioned above additionally do not exploit the gaussian characteristics of this protocol. We present first ideas for an error correction operating on an alphabet of almost arbitrary dimension explicitely designed for gaussian protocols.