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Nondestructive readout for a superconducting flux qubit
A. Lupascu, C. J. M. Verwijs, R. N. Schouten +2
We present a new readout method for a superconducting flux qubit, based on the measurement of the Josephson inductance of a superconducting quantum interference device that is indu…
Spectroscopy on two coupled flux qubits
J. B. Majer, F. G. Paauw, A. C. J. ter Haar +2
We have performed spectroscopy measurements on two coupled flux qubits. The qubits are coupled inductively, which results in a interaction. By applying microwave radia…
Coherent Quantum Dynamics of a Superconducting Flux Qubit
I. Chiorescu, Y. Nakamura, C. J. P. M. Harmans +1
We have observed coherent time evolution between two quantum states of a superconducting flux qubit comprising three Josephson junctions in a loop. The superposition of the two sta…
Decoherence of Flux Qubits Coupled to Electronic Circuits
F. K. Wilhelm, M. J. Storcz, C. H. van der Wal +2
On the way to solid-state quantum computing, overcoming decoherence is the central issue. In this contribution, we discuss the modeling of decoherence of a superonducting flux qubi…
Quantum ratchet effect for vortices
J. B. Majer, J. Peguiron, M. Grifoni +2
We have measured a quantum ratchet effect for vortices moving in a quasi-one-dimensional Josephson junction array. In this solid-state device the shape of the vortex potential ener…