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Comment on “Black Hole Entropy: A Closer Look” Pessoa, Pedro; Arderucio Costa, Bruno
Abstract
In a recent paper (Entropy 2020, 22(1), 17), Tsallis states that entropy—as in Shannon or Kullback–Leiber’s definitions—is inadequate to interpret black hole entropy and suggests that a new non-additive functional should take the role of entropy. Here we counterargue by explaining the important distinction between the properties of extensivity and additivity; the latter is fundamental for entropy, while the former is a property of particular thermodynamical systems that is not expected for black holes. We also point out other debatable statements in his analysis of black hole entropy.
Item Metadata
Title |
Comment on “Black Hole Entropy: A Closer Look”
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Creator | |
Publisher |
Multidisciplinary Digital Publishing Institute
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Date Issued |
2020-10-01
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Description |
In a recent paper (Entropy 2020, 22(1), 17), Tsallis states that entropy—as in Shannon or Kullback–Leiber’s definitions—is inadequate to interpret black hole entropy and suggests that a new non-additive functional should take the role of entropy. Here we counterargue by explaining the important distinction between the properties of extensivity and additivity; the latter is fundamental for entropy, while the former is a property of particular thermodynamical systems that is not expected for black holes. We also point out other debatable statements in his analysis of black hole entropy.
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Subject | |
Genre | |
Type | |
Language |
eng
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Date Available |
2020-11-04
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Provider |
Vancouver : University of British Columbia Library
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Rights |
CC BY 4.0
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DOI |
10.14288/1.0394904
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URI | |
Affiliation | |
Citation |
Entropy 22 (10): 1110 (2020)
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Publisher DOI |
10.3390/e22101110
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Peer Review Status |
Reviewed
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Scholarly Level |
Faculty
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Rights URI | |
Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
CC BY 4.0