Quantifying quantum-amplified metrology via Fisher information

We present a unified framework, based on quantum metrology concepts, for defining and quantifying deterministic noiseless quantum amplification of parameter-dependent processes, which plays an important role in increasing the precision of quantum sensing. Recent experiments [Burd et al., Science 364...

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Bibliographic Details
Main Authors: G. S. Agarwal, L. Davidovich
Format: Article
Language:English
Published: American Physical Society 2022-02-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.4.L012014