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Quantum Entropy Information Measures
Entanglement Theory Quantum Correlations
Quantum Thermodynamics
On the Equivalence of von Neumann and Thermodynamic Entropy
arXiv
Authors: Carina E. A. Prunkl
Year
2018
Paper ID
23880
Status
Preprint
Abstract Read
~2 min
Abstract Words
87
Citations
N/A
Abstract
In 1939, von Neumann argued for the equivalence of the thermodynamic entropy and -Trρlnρ, since known as the von Neumann entropy. Hemmo and Shenker (2006) recently challenged this argument by pointing out an alleged discrepancy between the two entropies in the single particle case, concluding that they must be distinct. In this article, their argument is shown to be problematic as it a) allows for a violation of the second law of thermodynamics and b) is based on an incorrect calculation of the von Neumann entropy.
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- This paper contributes to the Quantum Thermodynamics research area in the Quantum Articles archive.
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- In 1939, von Neumann argued for the equivalence of the thermodynamic entropy and -Trρlnρ, since known as the von Neumann entropy.
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