English

Temperature of a finite-dimensional quantum system

Quantum Physics 2020-05-04 v1

Abstract

A general expression for the temperature of a finite-dimensional quantum system is deduced from thermodynamic arguments. At equilibrium, this magnitude coincides with the standard thermodynamic temperature. Furthermore, it is well-defined even far from equilibrium. Explicit formulas for the temperature of two and three-dimensional quantum systems are presented, and some additional relevant aspects of this quantity are discussed.

Keywords

Cite

@article{arxiv.2005.00261,
  title  = {Temperature of a finite-dimensional quantum system},
  author = {Andrés Vallejo and Alejandro Romanelli and Raúl Donángelo},
  journal= {arXiv preprint arXiv:2005.00261},
  year   = {2020}
}
R2 v1 2026-06-23T15:14:06.807Z