Regensburg 2002 – scientific programme

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TT: Tiefe Temperaturen

TT 23: Mesoskopische Systeme II

TT 23.4: Talk

Friday, March 15, 2002, 11:30–11:45, H18

Implementation of quantum algorithms with Josephson charge qubits — •Norbert Schuch, Jens Siewert, and Klaus Richter — Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany

We investigate the realization of a simple solid-state quantum computer by implementing the oracles for the Deutsch-Jozsa algorithm in a system of Josephson charge qubits.

Starting from a procedure to carry out the one-qubit Deutsch-Jozsa algorithm we show how the N-qubit version of the Bernstein-Vazirani algorithm can be realized. In order to implement the Deutsch-Jozsa algorithm for more than two qubits it is helpful to classify the occuring entangled states. Then we provide ways how to achieve the corresponding gate operations in a setup of coupled qubits.