English

Does von Neumann Entropy Correspond to Thermodynamic Entropy?

History and Philosophy of Physics 2023-03-28 v1 Statistical Mechanics

Abstract

Conventional wisdom holds that the von Neumann entropy corresponds to thermodynamic entropy, but Hemmo and Shenker (2006) have recently argued against this view by attacking von Neumann (1955) and his argument. I argue that Hemmo and Shenker's arguments fail due to several misunderstandings: about statistical-mechanical and thermodynamic domains of applicability, about the nature of mixed states, and about the role of approximations in physics. As a result, their arguments fail in all cases: in the single-particle case, the finite particles case, and the infinite particles case.

Keywords

Cite

@article{arxiv.2303.14850,
  title  = {Does von Neumann Entropy Correspond to Thermodynamic Entropy?},
  author = {Eugene Y. S. Chua},
  journal= {arXiv preprint arXiv:2303.14850},
  year   = {2023}
}
R2 v1 2026-06-28T09:34:32.931Z