Cited by 557Advanced Thermodynamics and Statistical MechanicsStatistical Mechanics and EntropyMathematical Dynamics and Fractals

Time evolution of large classical systems

Lanford, Oscar E.·1975·Lecture Notes in Physics

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Crossref · 10.1007/3-540-07171-7_1

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4 of 4 references verified0 citation errors · 0 not checkable

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  • In Jaynes's example, a nonequilibrium system with energy E and kinetic energy K larger than equilibrium at the same E evolves toward equilibrium with a Maxwellian velocity distribution at temperature T∞ = (2/3k) K_E, where K_E is the equilibrium kinetic energy corresponding to E.

    “One starts with a nonequilibrium system with energy E in which the kinetic energy K is larger than what it would be for an equilibrium system with the same energy E . The system will evolve towards equilibrium with a Maxwellian velocity distribution at temperature T ∞ = 2 3 k K E where K E is the equilibrium kinetic energy corresponding to E .”

    From On the (Boltzmann) entropy of non-equilibrium systems (2004) · cites this paper as [16]

  • The Jaynes example does not contradict the typical second law behavior of S(f_t) because the microstates corresponding to the initial situation are not typical for the macrostates Γ_f0.

    “However, since the microstates corresponding to the initial situation just described are not typical for the macrostates Γ f 0 , this example does not contradict the typical second law behavior of S ( f t ).”

    From On the (Boltzmann) entropy of non-equilibrium systems (2004) · cites this paper as [16]

  • Assuming f0 is Maxwellian with temperature T0, then T∞ < T0 and S_gas(f∞) < S_gas(f0).

    “Assuming that f 0 is a Maxwellian with temperature T 0 we will have T ∞ &lt; T 0 and so S gas ( f ∞ ) &lt; S gas ( f 0 ).”

    From On the (Boltzmann) entropy of non-equilibrium systems (2004) · cites this paper as [16]

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Authors
Lanford, O. E.
Affiliations
University of California System (US)
Corresponding author
Lanford, Oscar E.
Venue
Lecture Notes in Physics
Published
1975
Pages
1-111
ISSN
  • 0075-8450 (ISSN-L)
  • 1616-6361
OpenAlex
W1568056205
Cited by
557
References
4
Citations by year
2026: 7 · 2025: 18 · 2024: 19 · 2023: 17 · 2022: 22 · 2021: 14 · 2020: 17 · 2019: 16 · 2018: 21 · 2017: 14 · 2016: 22 · 2015: 22 · 2014: 35 · 2013: 15 · 2012: 20
FWCI
32.95
Type
book chapter
Language
en
Open access
closed
Locations
Lecture notes in physics (publishedVersion)
Topics
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Advanced Thermodynamics and Statistical Mechanics
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Statistical Mechanics and Entropy
  • Physical Sciences › Mathematics › Mathematical Physics › Mathematical Dynamics and Fractals
Keywords
nonequilibrium statistical mechanics, microcanonical ensemble, ergodic theory, time evolution, large-scale systems

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