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arXiv · 1103.2991

Quantum characterization of superconducting photon counters

Giorgio Brida·Luigi Ciavarella·Ivo P. Degiovanni·Marco Genovese·Lapo Lolli·Maria G. Mingolla·Fabrizio Piacentini·Mauro Rajteri·Emanuele Taralli·Matteo G. A. Paris
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Abstract

We address the quantum characterization of photon counters based on transition-edge sensors (TESs) and present the first experimental tomography of the positive operator-valued measure (POVM) of a TES. We provide the reliable tomographic reconstruction of the POVM elements up to 11 detected photons and M=100 incoming photons, demonstrating that it is a linear detector.

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Giorgio Brida, Luigi Ciavarella, Ivo P. Degiovanni, Marco Genovese, Lapo Lolli, Maria G. Mingolla, Fabrizio Piacentini, Mauro Rajteri, Emanuele Taralli, Matteo G. A. Paris. 2012-05-03. Quantum characterization of superconducting photon counters. https://doi.org/10.1088/1367-2630%2F14%2F8%2F085001

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