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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Thermofractals, Non-Additive Entropy, and q-Calculus

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Author(s):
Deppman, Airton [1]
Total Authors: 1
Affiliation:
[1] Univ Sao Paulo, Inst Fis, BR-01000 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: PHYSICS; v. 3, n. 2, p. 290-301, JUN 2021.
Web of Science Citations: 0
Abstract

Non-additive entropy is obtained through the thermodynamic description of a system with a fractal structure in its energy-momentum space, called a thermofractal. The entropic parameter, q, is determined in terms of the fractal structure parameters. The characteristics of the thermofractals are determined by two parameters associated with the number of degrees of freedom of the fractal structure and the scale. The parameter q, of non-extensive thermodynamics, has a physical meaning related to the number of degrees of freedom of the thermofractal. The two types of thermofractals are distinguished by the value of q>1 or q<1. Studying the group of transformations of the fractal system, we identify three different classes of transformations and their mathematical expressions. For one class of transformations of thermofractals, the group is isomorphic with q-calculus. Another class of transformations led to new mathematical expressions that extended the deformed q-algebra. Finally, we comment regarding the applications of the results obtained here for different areas such as QCD and scale-free networks. (AU)

FAPESP's process: 16/17612-7 - Dynamics of many-body systems IV
Grantee:Arnaldo Gammal
Support Opportunities: Research Projects - Thematic Grants