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Tomography of photon-number resolving continuous-output detectors



Thomas Gerrits, Peter C. Humphreys, Benjamin Metcalf, Thomas Hiemstra, Adriana E. Lita, Sae Woo Nam, Animesh Datta, Steven Kolthammer, Ian Walmsley, Joshua Nunn


We develop a comprehensive approach to analyzing the continuous output of photon detectors. It uses principle component analysis to extract information available from such detectors, followed by a novel parameterized photon-number resolving detector tomography approach that is robust to noise. We further study the role of prior photon number distributions and propose a measure of quantifying the confidence of a detector's photon-number-resolving capability. We use our measure to compare different detectors in use.
Physical Review Letters


transition edge sensor, detector tomography, principle component analysis
Created October 21, 2015, Updated November 10, 2018