Coupled superconducting flux qubits

J. H. Plantenberg

Published Oct 5, 2007• 0 citations

Abstract

This thesis presents results of theoretical and experimental work on superconducting persistent-current quantum bits. These qubits offer an attractive route towards scalable solid-state quantum computing. The focus of this work is on the gradiometer flux qubit which has a special geometric design, that both provides a stable phase bias and improved immunity to global flux noise, and which enables the implementation of qubit registers. The realization of the simplest quantum register consisting for two such qubits, allowed for the experimental execution of the complete set of four controlled-NOT quantum gates.

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