Shot-by-shot estimation of quantum measurement accuracy via quantum Bayesian inference

Sergey V. Polyakov; Ivan Burenkov; M.V. Jabir; Fajar N. Annafianto; Abdella Battou

doi:10.1117/12.2578972

5 March 2021 Shot-by-shot estimation of quantum measurement accuracy via quantum Bayesian inference

Sergey V. Polyakov, Ivan Burenkov, M.V. Jabir, Fajar N. Annafianto, Abdella Battou

Proceedings Volume 11700, Optical and Quantum Sensing and Precision Metrology; 117003P (2021) https://doi.org/10.1117/12.2578972
Event: SPIE OPTO, 2021, Online Only

Abstract

Ordinarily, quantum-measurement based state discrimination methods use Bayesian inference to determine the maximally likely optical input state out of N possible inputs. Each practical single-shot measurement yields a unique vector of N likelihood values (one per each possible outcome) whose significance is not appreciated. Here we show theoretically and experimentally that measured Bayesian likelihood values are equal to observed probabilities of a successful state discrimination. Thus, the vector of Bayesian likelihoods provides significantly more information about the input state than is available in a typical state discrimination measurement.

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Citation Download Citation

Sergey V. Polyakov, Ivan Burenkov, M.V. Jabir, Fajar N. Annafianto, and Abdella Battou "Shot-by-shot estimation of quantum measurement accuracy via quantum Bayesian inference", Proc. SPIE 11700, Optical and Quantum Sensing and Precision Metrology, 117003P (5 March 2021); https://doi.org/10.1117/12.2578972

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