%0 Journal Article
%A Rivas, Ángel
%A Luis Aina, Alfredo
%T Precision quantum metrology and nonclassicality in linear and nonlinear detection schemes
%D 2010
%@ 0031-9007
%U https://hdl.handle.net/20.500.14352/44641
%X 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.
%~