60 citations · 204 across the 15 of their papers we have counts for
4 papers · 1 filter
Demonstration of quantum-limited discrimination of multi-copy pure versus mixed states
Arunkumar Jagannathan, Olivia Brasher, Michael Grace +3
We demonstrate an optical receiver that achieves the quantum Chernoff bound for discriminating coherent states from thermal states in the multi-copy scenario. In contrast, we find…
Identifying Objects at the Quantum Limit for Super-Resolution Imaging
Michael R Grace, Saikat Guha
We consider passive imaging tasks involving discrimination between known candidate objects and investigate the best possible accuracy with which the correct object can be identifie…
Perturbation Theory for Quantum Information
Michael R Grace, Saikat Guha
We report lowest-order series expansions for primary matrix functions of quantum states based on a perturbation theory for functions of linear operators. Our theory enables efficie…
Attaining quantum limited precision of localizing an object in passive imaging
Aqil Sajjad, Michael R Grace, Quntao Zhuang +1
We investigate our ability to determine the mean position, or centroid, of a linear array of equally-bright incoherent point sources of light, whose continuum limit is the problem…