Related papers: Testing the Quantum of Entropy

Testing the Quantum of Entropy

URL: http://arxiv.org/abs/2307.09914v1
Date: Wed, 19 Jul 2023 11:34:54 GMT
Title: Testing the Quantum of Entropy
Authors: Uwe Hohm and Christoph Schiller
Abstract summary: It is clarified when it is possible to speak about a quantum of entropy, given by the Boltzmann constant k, and about a lower entropy limit $S geq k ln 2$.
Score: 0.0
License: http://creativecommons.org/licenses/by-nc-sa/4.0/
Abstract: Experimental and theoretical results about entropy limits for macroscopic and single-particle systems are reviewed. It is clarified when it is possible to speak about a quantum of entropy, given by the Boltzmann constant k, and about a lower entropy limit $S \geq k \ln 2$. Conceptual tensions with the third law of thermodynamics and the additivity of entropy are resolved. Black hole entropy is also surveyed. Further claims for vanishing entropy values are shown to contradict the requirement of observability, which, as possibly argued for the first time, also implies $S \geq k \ln 2$. The uncertainty relations involving the Boltzmann constant and the possibility of deriving thermodynamics from the existence of a quantum of entropy enable one to speak about a principle of the entropy limit that is valid across nature.

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