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Hamburg 2009 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 52: Quanteninformation: Quantenkommunikation II

Q 52.8: Talk

Thursday, March 5, 2009, 18:15–18:30, Audi-B

Quantum key distribution based on general finite-dimensional systems — •Kedar S. Ranade and Gernot Alber — Institut für Angewandte Physik, Technische Universität Darmstadt

It is well-known that qubit-based quantum key distribution protocols can be generalised to protocols based on higher dimensional information carriers (so-called qudits). We prove security bounds for qudit-based prepare-and-measure protocols, which may use both one-way and two-way error correction, by generic means of evaluating such bounds through associated entanglement-based protocols.

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