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quant-ph2005★ 121 cited
Optimal Control of Coupled Josephson Qubits
A. K. Spoerl, T. Schulte-Herbrueggen, S. J. Glaser +4
Quantum optimal control theory is applied to two and three coupled Josephson charge qubits. It is shown that by using shaped pulses a CNOT gate can be obtained with a trace fidelit…
quant-ph2005
A new local invariant for quantum gates
Laura Koponen, Ville Bergholm, Martti M. Salomaa
In this paper we study the properties of two-qubit gates. We review the most common parameterizations for the local equivalence classes of two-qubit gates and the connections betwe…