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@article{Paraoanu2006InteractionfreeMW,
  title={Interaction-free measurements with superconducting qubits.},
  author={G. S. Paraoanu},
  journal={Physical review letters},
  year={2006},
  volume={97 18},
  pages={
          180406
        },
  url={https://api.semanticscholar.org/CorpusID:24376135}
}

An interaction-free measurement protocol is described for a quantum circuit consisting of a superconducting qubit and a readout Josephson junction that can ascertain the presence of a current pulse through the circuit at a previous time without any energy exchange between the quBit and the pulse.

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