 ##  [Fluctuation–Dissipation Theorem](/fluctuation-dissipation-theorem) 

  ##  [Fluctuation–Dissipation Theorem](https://mathlogic.quantumdictionary.io/fluctuation-dissipation-theorem-0) 

  
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- Natural &amp; Formal Sciences -

**Mathematics &amp; Logic Dictionary**

 
Definition

A relation valid near thermodynamic equilibrium that connects the linear response of a system to small external perturbations with the time-correlation functions of its spontaneous equilibrium fluctuations.