English

Probability distribution of classical observables

Statistical Mechanics 2023-10-13 v2

Abstract

In this work, I derive the time-dependent probability density function of classical observables using the Hamiltonian mechanics approach, extending the notion of fluctuation theorems for any observables. In particular, the time-dependent probability density function of the thermodynamic work evolving in the switching time is solved as a special case. From such a relation, I prove Jarzynski's equality and Crook's fluctuation theorem. The particular case of a Gaussian distribution for slowly-varying processes is derived as well at the end.

Keywords

Cite

@article{arxiv.2310.05747,
  title  = {Probability distribution of classical observables},
  author = {Pierre Nazé},
  journal= {arXiv preprint arXiv:2310.05747},
  year   = {2023}
}

Comments

No figures, 4 pages

R2 v1 2026-06-28T12:44:41.855Z