A Geometric Approach to the Concept of Extensivity in Thermodynamics

Autor: García-Ariza, Miguel Ángel
Rok vydání: 2018
Předmět:
Zdroj: SIGMA 15 (2019), 015, 14 pages
Druh dokumentu: Working Paper
DOI: 10.3842/SIGMA.2019.015
Popis: This paper presents a rigorous treatment of the concept of extensivity in equilibrium thermodynamics from a geometric point of view. This is achieved by endowing the manifold of equilibrium states of a system with a smooth atlas that is compatible with the pseudogroup of transformations on a vector space that preserve the radial vector field. The resulting geometric structure allows for accurate definitions of extensive differential forms and scaling, and the well-known relationship between both is reproduced. This structure is represented by a global vector field that is locally written as a radial one. The submanifolds that are transversal to it are embedded, and locally defined by extensive functions.
Databáze: arXiv