Approaching perfect microwave photodetection in circuit QED

@article{Peropadre2011ApproachingPM,
  title={Approaching perfect microwave photodetection in circuit QED},
  author={Borja Peropadre and Guillermo Romero and G. Johansson and C. M. Wilson and Enrique Solano and J. J. Garc'ia-Ripoll},
  journal={Physical Review A},
  year={2011},
  volume={84},
  pages={063834}
}
In order to apply all ideas from quantum optics to the field of quantum circuits, one of the missing ingredients is a high-efficiency single-photon detector. In this work we propose a design for such a device which successfully reaches 100% efficiency with only one absorber. Our photon detector consists of a three-level system (a phase qubit) coupled to a semi-infinite one-dimensional waveguide (a microwave transmission line) which performs highly efficient photodetection in a simplified manner… Expand

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