# Temperature of a finite-dimensional quantum system

@article{Vallejo2020TemperatureOA, title={Temperature of a finite-dimensional quantum system}, author={Andr{\'e}s Vallejo and Alejandro Romanelli and Ra'ul Don'angelo}, journal={arXiv: Quantum Physics}, year={2020} }

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.

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