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Bayesian quantum estimation of the separation of two incoherent point sources

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arxiv 2412.05245 v1 pith:ZWZOVK4F submitted 2024-12-06 quant-ph

classification quant-ph
keywords bayesianpointpriorseparationestimationincoherentquantumsources
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We address the estimation problem of the separation of two arbitrarily close incoherent point sources from the quantum Bayesian point of view, i.e., when a prior probability distribution function (PDF) on the separation is available. For the non-dispalced and displaced half-Gaussian prior PDF, we compare the performance of SPADE and direct imaging (DI) with the Bayesian minimum mean square error and by varying the prior PDF's parameters we discuss the regimes of superiority of either SPADE or DI.

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