Precision quantum metrology and nonclassicality in linear and nonlinear detection schemes
Quantum Physics
2010-07-02 v2
Abstract
We examine whether metrological resolution beyond coherent states is a nonclassical effect. We show that this is true for linear detection schemes but false for nonlinear schemes, and propose a very simple experimental setup to test it. We find a nonclassicality criterion derived from quantum Fisher information.
Keywords
Cite
@article{arxiv.1002.3075,
title = {Precision quantum metrology and nonclassicality in linear and nonlinear detection schemes},
author = {Ángel Rivas and Alfredo Luis},
journal= {arXiv preprint arXiv:1002.3075},
year = {2010}
}
Comments
4 pages, 1 figure