Remarks on the Nyquist and Callen-Welton Theorems

S. A. Trigger; G. J. F. van Heijst; A. A. Rukhadze; P. P. J. M. Schram

doi:10.1016/j.physa.2006.07.018

Remarks on the Nyquist and Callen-Welton Theorems

Statistical Mechanics 2009-11-11 v1 Disordered Systems and Neural Networks

Authors: S. A. Trigger , G. J. F. van Heijst , A. A. Rukhadze , P. P. J. M. Schram

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Abstract

The connection of the Callen-Welton and Nyquist fluctuation-dissipation relations is considered for plasma-like classical and quantum systems. The conditions for appearance of the dissipative parameters in the equilibrium current-current correlation function are investigated. The paper presents the arguments for the restrictions of the Nyquist theorem and against violation of the Callen-Welton theorem in the quantum case.

Keywords

Nyquist theorem Callen-Welton theorem fluctuation-dissipation relations plasma-like systems current-current correlation function dissipative parameters

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@article{arxiv.cond-mat/0606161,
  title  = {Remarks on the Nyquist and Callen-Welton Theorems},
  author = {S. A. Trigger and G. J. F. van Heijst and A. A. Rukhadze and P. P. J. M. Schram},
  journal= {arXiv preprint arXiv:cond-mat/0606161},
  year   = {2009}
}

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14 pages, 0 figures, sumitted in Physica A

Remarks on the Nyquist and Callen-Welton Theorems

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