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.
Quantum characterization of superconducting photon counters / G. Brida, L. Ciavarella, I. P. Degiovanni, M. Genovese, L. Lolli, M. G. Mingolla, F. Piacentini, M. Rajteri, E. Taralli, M. G. A. Paris. - In: NEW JOURNAL OF PHYSICS. - ISSN 1367-2630. - 14:8(2012), pp. 085001.085001.1-085001.085001.9. [10.1088/1367-2630/14/8/085001]
Quantum characterization of superconducting photon counters
M.G.A. ParisUltimo
2012
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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