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arXiv · 1206.5145

Tomography and state reconstruction with superconducting single-photon detectors

Jelmer J. Renema·Giulia Frucci·Michiel J. A. de Dood·Richard Gill·Andrea Fiore·Martin P. van Exter
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Abstract

We perform quantum state reconstruction of coherent and thermal states with a detector which has an enhanced multiphoton response. The detector is based on superconducting nanowires, where the bias current sets the dependence of the click probability on the photon number; this bias current is used as tuning parameter in the state reconstruction. The nonlinear response makes our nanowire-based detector superior to the linear detectors that are conventionally used for quantum state reconstruction.

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Jelmer J. Renema, Giulia Frucci, Michiel J. A. de Dood, Richard Gill, Andrea Fiore, Martin P. van Exter. 2012-06-22. Tomography and state reconstruction with superconducting single-photon detectors. https://doi.org/10.1103/physreva.86.062113

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