Hannover 2010 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 52: Quantum Information: Concepts and Methods IV / Photons and Nonclassical Light I
Q 52.2: Talk
Thursday, March 11, 2010, 14:15–14:30, E 214
Optimal super dense coding for correlated noise with unitary and non-unitary encoding — •zahra shadman1, hermann Kampermann1, chiara macchiavello2, and dagmar bruss1 — 1Heinrich-Heine-Universität, Institut für Theoretische Physik III , Düsseldorf, Deutschland — 2University of Pavia, Italy
We study an important protocol in quantum information processing, namely super dense coding in the presence of correlated noise. For this case we discuss the optimal super dense coding capacity with unitary encoding. We calculate this capacity for specific examples. We also show that in case of general encoding, the optimal capacity can be reached by preprocessing on the sender's side and unitary encoding.