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arxiv: 1103.2991 · v4 · pith:SDLMAZBFnew · submitted 2011-03-15 · 🪐 quant-ph · cond-mat.supr-con

Quantum characterization of superconducting photon counters

classification 🪐 quant-ph cond-mat.supr-con
keywords characterizationcountersphotonphotonspovmquantumaddressdemonstrating
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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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