We construct optimal measurements, achieving the ultimate precision predicted by quantum theory, for the simultaneous estimation of centroid, separation, and relative intensities of two incoherent point sources using a linear optical system. We discuss the physical feasibility of the scheme, which could pave the way for future practical implementations of quantum inspired imaging.
@article{arxiv.1712.08524,
title = {Optimal measurements for quantum spatial superresolution},
author = {J. Rehacek and Z. Hradil and D. Koutny and J. Grover and A. Krzic and L. L. Sanchez-Soto},
journal= {arXiv preprint arXiv:1712.08524},
year = {2018}
}