The Markov Process Admits a Consistent Steady-State Thermodynamic Formalism

Liangrong Peng Zhou Pei-Yuan Center for Applied Mathematics, Tsinghua University, Beijing, China, 100084 Yi Zhu Zhou Pei-Yuan Center for Applied Mathematics, Tsinghua University, Beijing, China, 100084 Liu Hong Zhou Pei-Yuan Center for Applied Mathematics, Tsinghua University, Beijing, China, 100084

arXiv subject: Statistical Mechanics (cond-mat.stat-mech) mathscidoc:2204.48001

2017.10
The seek for a new universal formulation for describing various non-equilibrium processes is a central task of modern non-equilibrium thermodynamics. In this paper, a novel steady-state thermodynamic formalism was established for general Markov processes described by the Chapman-Kolmogorov equation. Furthermore, corresponding formalisms of steady-state thermodynamics for master equation and Fokker-Planck equation could be rigorously derived in mathematics. To be concrete, we proved that: 1) in the limit of continuous time, the steady-state thermodynamic formalism for the Chapman-Kolmogorov equation fully agrees with that for the master equation; 2) a similar one-to-one correspondence could be established rigorously between the master equation and Fokker-Planck equation in the limit of large system size; 3) when a Markov process is restrained to one-step jump, the steady-state thermodynamic formalism for the Fokker-Planck equation with discrete state variables also goes to that for master equations, as the discretization step gets smaller and smaller. Our analysis indicated that, with respect to the steady state, general Markov processes admit a unified and self-consistent non-equilibrium thermodynamic formulation, regardless of underlying detailed models.
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@inproceedings{liangrong2017the,
  title={The Markov Process Admits a Consistent Steady-State Thermodynamic Formalism},
  author={Liangrong Peng, Yi Zhu, and Liu Hong},
  url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20220421114909013109086},
  year={2017},
}
Liangrong Peng, Yi Zhu, and Liu Hong. The Markov Process Admits a Consistent Steady-State Thermodynamic Formalism. 2017. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20220421114909013109086.
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