English

Possible extended forms of thermodynamic entropy

Statistical Mechanics 2015-06-17 v3

Abstract

Thermodynamic entropy is determined by a heat measurement through the Clausius equality. The entropy then formalizes a fundamental limitation of operations by the second law of thermodynamics. The entropy is also expressed as the Shannon entropy of the microscopic degrees of freedom. Whenever an extension of thermodynamic entropy is attempted, we must pay special attention to how its three different aspects just mentioned are altered. In this paper, we discuss possible extensions of the thermodynamic entropy.

Keywords

Cite

@article{arxiv.1309.7131,
  title  = {Possible extended forms of thermodynamic entropy},
  author = {Shin-ichi Sasa},
  journal= {arXiv preprint arXiv:1309.7131},
  year   = {2015}
}

Comments

15 pages, contribution to STATPYHS25 Special Issue; minor revisions are made in ver.2; some typos are fixed in ver.3. This version will be published in JSTAT

R2 v1 2026-06-22T01:35:16.024Z