Journal
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
Volume 392, Issue 15, Pages 3132-3139Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physa.2013.03.028
Keywords
q-entropy; Mutual information; Finite heat reservoir
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Funding
- Hungarian National Research Fund OTKA [K104260]
- Hungarian-South African project NIH [TET_10-1_2011-0061, ZA-15/2009]
- Helmholtz International Center for FAIR
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A mathematical procedure is suggested to obtain deformed entropy formulas of type K(S-K) = Sigma PiK (-In P-i), by requiring zero mutual K(S-K)-information between a finite subsystem and a finite reservoir. The use of this method is first demonstrated on the ideal gas equation of state with finite constant heat capacity, C, where it delivers the Renyi and Tsallis formulas. A novel interpretation of the q* = 2 q duality arises from the comparison of canonical subsystem and total microcanonical partition approaches. In the sequel a new, generalized deformed entropy formula is constructed for the linear C(S) = C-0 + C1S relation. (C) 2013 Elsevier B.V. All rights reserved.
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