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Q: Quantenoptik

Q 231: Post Deadline

Q 231.3: Talk

Tuesday, March 5, 2002, 19:20–19:30, HS 11/215

Logical network implementation for cluster states and graph codes — •Dirk Schlingemann — Institut f. Mathematische Physik, TU-Braunschweig

A straight forward construction method for quantum error correcting codes, based on graphs, has been introduced. These graph codes are directly related to cluster states which have been introduced by Briegel and Raussendorf. We show that the preparation of a cluster state as well as the coding operation for a graph codes, can be implemented by a logical network. Concerning the qubit case each vertex corresponds to an Hadamard gate and each edge corresponds to a controlled not gate.