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Physical Review Letters

Experimental Shot-by-Shot Estimation of Quantum Measurement Confidence

Ivan A. Burenkov, N. Fajar R. Annafianto, M. V. Jabir, Michael Wayne, Abdella Battou, Sergey V. Polyakov

Published Jan 25, 2022• 9 citations
Publisher

Abstract

We demonstrate the single-shot confidence estimation for individual quantum measurement outcomes using the continuous measurement theory of the quantum counting process applied to the quantum state identification problem. We experimentally obtain single-shot and average confidences for quantum measurements and show that they favorably compare to that of the idealized classical measurement. Finally, we demonstrate that single-shot confidence estimations correctly represent observed experimental outcomes for a large ensemble of measurements.

DOI
10.1103/physrevlett.128.040404

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