Average number is an insufficient metric for interferometry
Quantum Physics
2022-01-03 v2
Abstract
We argue that analysing schemes for metrology solely in terms of the average particle number can obscure the number of particles effectively used in informative events. For a number of states we demonstrate that, in both frequentist and Bayesian frameworks, the average number of a state can essentially be decoupled from the aspects of the total number distribution associated with any metrological advantage.
Cite
@article{arxiv.2107.06698,
title = {Average number is an insufficient metric for interferometry},
author = {Dominic Branford and Jesús Rubio},
journal= {arXiv preprint arXiv:2107.06698},
year = {2022}
}