364 citations
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Showing cond-mat.supr-conShow all
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cond-mat.supr-con2005★ 76 cited
Four-qubit device with mixed couplings
M. Grajcar, A. Izmalkov, S. H. W. van der Ploeg +12
We present the first experimental results on a device with more than two superconducting qubits. The circuit consists of four three-junction flux qubits, with simultaneous ferro- a…
cond-mat.supr-con2005★ 58 cited
Direct Josephson coupling between superconducting flux qubits
M. Grajcar, A. Izmalkov, S. H. W. van der Ploeg +8
We have demonstrated strong antiferromagnetic coupling between two three-junction flux qubits based on a shared Josephson junction, and therefore not limited by the small inductanc…
cond-mat.supr-con2004★ 48 cited
Possible implementation of adiabatic quantum algorithm with superconducting flux qubits
M. Grajcar, A. Izmalkov, E. Il'ichev
We show that an LC parametric transducer can be effectively used to monitor an adiabatic evolution of the superconducting flux qubit. We propose a new scheme to measure the qubit's…