Metrological resolution and nonclassicality in linear and nonlinear detection schemes

́Angel Rivas, Alfredo Luis

Published Feb 16, 2010• 2 citations

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.

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