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Osnabrück 2002 – scientific programme

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Q: Quantenoptik

Q 223: Quantum Information II

Q 223.4: Talk

Tuesday, March 5, 2002, 17:15–17:30, HS 11/215

Computational model underlying the one-way quantum computer — •Robert Raussendorf and Hans-Juergen Briegel — Universitaet Muenchen, Sektion Physik, Theoretische Quantenoptik

We have demonstrated in [1] that a class of highly entangled multi-particle states, the cluster states [2], can serve as one-way quantum computers. The one-way quantum computer is a scheme of universal quantum computation that consists only of one-qubit measurements on a resource quantum state.

In this talk, a computational model [3] underlying the one-way quantum computer (QCC) is presented. The QCC has the property that any quantum logic network can be simulated on it. Conversely, not all ways of information processing that are possible with the QCC can be explained within the network model. For example, circuits in the Clifford group –which contains for example many coding circuits– can be performed in a single time-step.

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