The Theory of Spin Noise Spectroscopy: A Review
N. A. Sinitsyn, Y. V. Pershin

TL;DR
This review explains the theoretical foundations of optical Spin Noise Spectroscopy (SNS), highlighting recent progress and various interpretative techniques used to analyze spin fluctuations in complex systems.
Contribution
It provides a comprehensive overview of the theoretical methods used in SNS and introduces recent advances in interpreting spin noise measurements.
Findings
Various theoretical techniques explained with applications
Recent progress in optical SNS highlighted
Foundations for interpreting spin fluctuations established
Abstract
Direct measurements of spin fluctuations are becoming the mainstream approach for studies of complex condensed matter, molecular, nuclear, and atomic systems. This review covers recent progress in the field of optical Spin Noise Spectroscopy (SNS) with an additional goal to establish an introduction into its theoretical foundations. Various theoretical techniques that have been recently used to interpret results of SNS measurements are explained alongside with examples of their applications.
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