Optimal multiqubit operations for Josephson charge qubits

Abstract

We introduce a method for finding the required control parameters for a quantum computer that yields the desired quantum algorithm without invoking elementary gates. We concentrate on the Josephson charge-qubit model, but the scenario is readily extended to other physical realizations. Our strategy is to numerically find any desired double- or triple-qubit gate. The motivation is the need to significantly accelerate quantum algorithms in order to fight decoherence.

4 pages, 5 figures

References in corpus (2)

• Scalable quantum computing with Josephson charge qubits
• Realization of Arbitrary Gates in Holonomic Quantum Computation

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