Phys. Rev. Lett. 88, 020601 (2001) [4 pages]Is Tsallis Thermodynamics Nonextensive?Received 22 June 2001; published 26 December 2001 Within the Tsallis thermodynamics framework, and using scaling properties of the entropy, we derive a generalization of the Gibbs-Duhem equation. The analysis suggests a transformation of variables that allows standard thermodynamics to be recovered. Moreover, we also generalize Einstein’s formula for the probability of a fluctuation to occur by means of the maximum statistical entropy method. The use of the proposed transformation of variables also shows that fluctuations within Tsallis statistics can be mapped to those of standard statistical mechanics. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.020601
DOI:
10.1103/PhysRevLett.88.020601
PACS:
05.70.Ln, 05.20.Gg, 05.40.-a
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