TL;DR
This tutorial explains how quantum photonics sensing uses nonclassical light to improve measurement precision, discussing fundamental principles and current advancements in quantum metrology.
Contribution
It provides a comprehensive overview of quantum optical metrology, highlighting the role of nonclassical light and recent progress in the field.
Findings
Nonclassical light enhances measurement precision.
Quantum effects can outperform classical measurement methods.
Current state-of-the-art techniques demonstrate significant improvements.
Abstract
The purpose of quantum technologies is to explore how quantum effects can improve on existing solutions for the treatment of information. Quantum photonics sensing holds great promises for reaching a more efficient trade-off between invasivity and quality of the measurement, when compared with the potential of classical means. This tutorial is dedicated to presenting how this advantage is brought about by nonclassical light, examining the basic principles of parameter estimation and reviewing the state of the art.
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