Revisiting the Classics to recover the Physical Sense in electrical noise

Izpura Torres, José Ignacio (2011). Revisiting the Classics to recover the Physical Sense in electrical noise. "Journal of Modern Physics", v. 2 (n. 6); pp. 457-462. ISSN 2153-1196. https://doi.org/10.4236/jmp.2011.26055.

Description

Title: Revisiting the Classics to recover the Physical Sense in electrical noise
Author/s:
  • Izpura Torres, José Ignacio
Item Type: Article
Título de Revista/Publicación: Journal of Modern Physics
Date: June 2011
ISSN: 2153-1196
Volume: 2
Subjects:
Freetext Keywords: Quantum-Compliant ; Noise Model ; Fluctuation-Dissipation Theorem ; Cause-Effect ; Action-Reaction
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Ingeniería Electrónica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

This paper shows a physically cogent model for electrical noise in resistors that has been obtained from Thermodynamical reasons. This new model derived from the works of Johnson and Nyquist also agrees with the Quantum model for noisy systems handled by Callen and Welton in 1951, thus unifying these two Physical viewpoints. This new model is a Complex or 2-D noise model based on an Admittance that considers both Fluctuation and Dissipation of electrical energy to excel the Real or 1-D model in use that only considers Dissipation. By the two orthogonal currents linked with a common voltage noise by an Admittance function, the new model is shown in frequency domain. Its use in time domain allows to see the pitfall behind a paradox of Statistical Mechanics about systems considered as energy-conserving and deterministic on the microscale that are dissipative and unpredictable on the macroscale and also shows how to use properly the Fluctuation-Dissipation Theorem.

More information

Item ID: 11777
DC Identifier: http://oa.upm.es/11777/
OAI Identifier: oai:oa.upm.es:11777
DOI: 10.4236/jmp.2011.26055
Official URL: http://www.scirp.org/journal/jmp
Deposited by: Memoria Investigacion
Deposited on: 13 Nov 2012 10:42
Last Modified: 22 Sep 2014 10:51
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