Entropies galore!
Entropies galore!
The functional properties of the entropy gives rise to 6 possible types of thermodynamics. Additivity or superadditivity or subadditivity are closely related to extensivity and this is one of the characteristics used to distinguish the 6 types. We give examples (some are somewhat academic) of all of these, except one. For this purpose we draw also on black hole systems which have been proposed. Some of these systems have subadditive entropies, i.e. they tend to fragment rather than clump. After proposing a new entropy function we raise the problem of how to select from these entropy functions. Are some better than others
46-49
Landsberg, P.T.
430ba980-a590-4d7c-8c03-9ecf192c21d3
1999
Landsberg, P.T.
430ba980-a590-4d7c-8c03-9ecf192c21d3
Landsberg, P.T.
(1999)
Entropies galore!
Brazilian Journal of Physics, 29 (1), .
Abstract
The functional properties of the entropy gives rise to 6 possible types of thermodynamics. Additivity or superadditivity or subadditivity are closely related to extensivity and this is one of the characteristics used to distinguish the 6 types. We give examples (some are somewhat academic) of all of these, except one. For this purpose we draw also on black hole systems which have been proposed. Some of these systems have subadditive entropies, i.e. they tend to fragment rather than clump. After proposing a new entropy function we raise the problem of how to select from these entropy functions. Are some better than others
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Published date: 1999
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Local EPrints ID: 29487
URI: http://eprints.soton.ac.uk/id/eprint/29487
ISSN: 0103-9733
PURE UUID: b8690075-4bf0-46ab-8379-482826503ded
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Date deposited: 04 Jan 2007
Last modified: 08 Jan 2022 18:56
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Author:
P.T. Landsberg
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