A perspective on multiparameter quantum metrology: From theoretical tools to applications in quantum imaging

By F. Albarelli, M. Barbieri, Marco G. Genoni, I. Gianani. Physics Letters, 2019

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Abstract The interest in a system often resides in the interplay among different parameters governing its evolution. It is thus often required to access many of them at once for a complete description. Assessing how quantum enhancement in such multiparameter estimation can be achieved depends on understanding the many subtleties that come into play: establishing solid foundations is key to delivering future technology for this task. In this article we discuss the state of the art of quantum multiparameter estimation, with a particular emphasis on its theoretical tools, on application to imaging problems, and on the possible avenues towards the next developments.

Subfields: Acoustics and Ultrasonics, Artificial Intelligence, Biophysics

View Paper: https://www.semanticscholar.org/paper/3735cfb66f2f325c3a28834a11a21e447fb4cea4