TL;DR
This paper introduces a novel method for detector self-tomography using entangled states, allowing complete detector characterization and revealing nonclassical features in Bell-type experiments.
Contribution
It proposes an intuitive model for detector self-tomography based on entangled states and joint statistics, enabling full detector characterization.
Findings
Successful application to Bell-type experiments
Revealed nonclassical nature of the detectors
Provided a new framework for detector analysis
Abstract
We present an intuitive model of detector self-tomography. Two identical realisations of the detector are illuminated by an entangled state that connects the joint statistics in a way in which each detector sees the other as a kind of mirror reflection. A suitable analysis of the statistics reveals the possibility of fully characterizing the detector. We apply this idea to Bell-type experiments revealing their nonclassical nature.
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