Hamburg 2009 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 52: Quanteninformation: Quantenkommunikation II

Q 52.4: Talk

Thursday, March 5, 2009, 17:15–17:30, Audi-B

On superdense coding with noisy channels — •zahra shadman, hermann kampermann, and dagmar bruss — Heinrich-Heine-Universität, Institut für Theoretische Physik III, Düsseldorf, Deutschland

We study the capacity of a superdense coding protocol in the case of a noisy channel. We consider the case where the channel acts on Alice's side, and the one where it acts both on Alice's and Bob's side. In the latter case, the noise can be correlated or uncorrelated. We study various noise models and various bipartite input states, and derive the optimal capacity.