English

A characterization of von Neumann entropy using functors

Quantum Physics 2023-09-20 v1

Abstract

Baez, Fritz, and Leinster derived a method for characterizing Shannon entropy in classical systems. In this method, they considered a functor from a certain category to the monoid of non-negative real numbers with addition as a map from measure-preserving functions to non-negative real numbers, and derived Shannon entropy by imposing several simple conditions. We propose a method for characterizing von Neumann entropy by extending their results to quantum systems.

Keywords

Cite

@article{arxiv.2309.10353,
  title  = {A characterization of von Neumann entropy using functors},
  author = {K. Nakahira},
  journal= {arXiv preprint arXiv:2309.10353},
  year   = {2023}
}
R2 v1 2026-06-28T12:25:43.934Z