Continuity of the entropy of macroscopic quantum systems.

  title={Continuity of the entropy of macroscopic quantum systems.},
  author={Robert H. Swendsen},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  volume={92 5},
  • R. Swendsen
  • Published 6 August 2015
  • Physics
  • Physical review. E, Statistical, nonlinear, and soft matter physics
The proper definition of entropy is fundamental to the relationship between statistical mechanics and thermodynamics. It also plays a major role in the recent debate about the validity of the concept of negative temperature. In this paper, I analyze and calculate the thermodynamic entropy for large but finite quantum mechanical systems. A special feature of this analysis is that the thermodynamic energy of a quantum system is shown to be a continuous variable, rather than being associated with… 

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