Cited by 9,441Advanced Thermodynamics and Statistical MechanicsTheoretical and Computational PhysicsStatistical Mechanics and Entropy

Statistical-mechanical theory of irreversible processes. I. general theory and simple applications to magnetic and conduction problems

Kubo, Ryogo·1957·Journal of the Physical Society of Japan

Abstract

A general type of fluctuation-dissipation theorem is discussed to show that the physical quantities such as complex susceptibility of magnetic or electric polarization and complex conductivity for electric conduction are rigorously expressed in terms of time-fluctuation of dynamical variables associated with such irreversible processes. This is a generalization of statistical mechanics which affords exact formulation as the basis of calculation of such irreversible quantities from atomistic theory. The general formalism of this statistical-mechanical theory is examined in detail. The response, relaxation, and correlation functions are defined in quantummechanical way and their relations are investigated. The formalism is illustrated by simple examples of magnetic and conduction problems. Certain sum rules are discussed for these examples. Finally it is pointed out that this theory may be looked as a generalization of the Einstein relation.

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Crossref · 10.1143/jpsj.12.570

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  • Any physical system shows some degree of memory in its response to external perturbations, whether that memory is easy to detect or not.

    “any physical system shows some degree of memory in its response to external perturbations [12], whether that memory is easy to detect or not.”

    From Comment on 'If it's pinched it's a memristor' (2019) · cites this paper as [12]

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Authors
Kubo, R.
Affiliations
The University of Tokyo (JP)
Corresponding author
Kubo, Ryogo
Venue
Journal of the Physical Society of Japan
Published
1957-06
Volume
12
Issue
6
Pages
570-586
ISSN
  • 0031-9015 (ISSN-L)
  • 1347-4073
OpenAlex
W2018763953
Cited by
9,441
References
0
Citations by year
2026: 343 · 2025: 418 · 2024: 350 · 2023: 363 · 2022: 385 · 2021: 398 · 2020: 470 · 2019: 310 · 2018: 262 · 2017: 310 · 2016: 273 · 2015: 239 · 2014: 237 · 2013: 212 · 2012: 239
FWCI
24.58
Type
journal article
Language
en
Open access
closed
Locations
Journal of the Physical Society of Japan (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Advanced Thermodynamics and Statistical Mechanics
  • Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Theoretical and Computational Physics
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Statistical Mechanics and Entropy
Keywords
fluctuation-dissipation theorem, irreversible processes, complex susceptibility, complex conductivity, magnetic polarization, electrical conduction, response functions, relaxation function, correlation functions, sum rules, Einstein relation, generalized statistical mechanics

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