Fundamental limits and optimal estimation of the resonance frequency of a linear harmonic oscillator

Thermodynamic and quantum fluctuations limit the accuracy with which conventional methods can measure observables, often depending on the method chosen. Here, information theory is employed to determine the minimum uncertainty in the resonant frequency of a harmonic oscillator in a method-independen...

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Bibliographic Details
Main Authors: Mingkang Wang, Rui Zhang, Robert Ilic, Yuxiang Liu, Vladimir A. Aksyuk
Format: Article
Language:English
Published: Nature Publishing Group 2021-09-01
Series:Communications Physics
Online Access:https://doi.org/10.1038/s42005-021-00700-6