Von Neumann's entropy does not correspond to thermodynamic entropy

Meir Hemmo; Orly Shenker

doi:10.1086/510816

Von Neumann's entropy does not correspond to thermodynamic entropy

Meir Hemmo^*
, Orly Shenker

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

Von Neumann argued by means of a thought experiment involving measurements of spin observables that the quantum mechanical quantity S_VN = -kTr(ρlogρ) is conceptually equivalent to thermodynamic entropy. We analyze Von Neumann's thought experiment and show that his argument fails.

Original language	English
Pages (from-to)	153-174
Number of pages	22
Journal	Philosophy of Science
Volume	73
Issue number	2
DOIs	https://doi.org/10.1086/510816
State	Published - Apr 2006
Externally published	Yes

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abstract = "Von Neumann argued by means of a thought experiment involving measurements of spin observables that the quantum mechanical quantity SVN = -kTr(ρlogρ) is conceptually equivalent to thermodynamic entropy. We analyze Von Neumann's thought experiment and show that his argument fails.",

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Von Neumann's entropy does not correspond to thermodynamic entropy

Abstract

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