Superconducting qubits can be coupled and addressed as trapped ions

  title={Superconducting qubits can be coupled and addressed as trapped ions},
  author={Yu-xi Liu and L. F. Wei and J. R. Johansson and J. S. Tsai and Franco Nori},
  journal={Physical Review B},
Exploiting the intrinsic nonlinearity of superconducting Josephson junctions, we propose a scalable circuit with superconducting qubits (SCQs) which is very similar to the successful one now being used for trapped ions. The SCQs are coupled to the ''vibrational'' mode provided by a superconducting LC circuit or its equivalent (e.g., a superconducting quantum interference device). Both single-qubit rotations and qubit-LC-circuit couplings and/or decouplings can be controlled by the frequencies… 

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