Stability Properties of Geometrothermodynamic Cosmological Models

We consider a particular isotropic and homogeneous cosmological model, in which the equation of state is obtained from a thermodynamic fundamental equation by using the formalism of geometrothermodynamics (GTD). The model depends effectively on three arbitrary constants, which can be fixed to reprod...

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Detalles Bibliográficos
Autores principales: Beissen, Nurzada, Abishev, Medeu, Khassanov, Manas, Aitassov, Temirbolat, Mamatova, Sagira, Toktarbay, Saken
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10606119/
https://www.ncbi.nlm.nih.gov/pubmed/37895512
http://dx.doi.org/10.3390/e25101391
Descripción
Sumario:We consider a particular isotropic and homogeneous cosmological model, in which the equation of state is obtained from a thermodynamic fundamental equation by using the formalism of geometrothermodynamics (GTD). The model depends effectively on three arbitrary constants, which can be fixed to reproduce the main aspects of the inflationary era and the [Formula: see text] CDM paradigm. We use GTD to analyze the geometric properties of the corresponding equilibrium space and to derive the stability properties and phase transition structure of the cosmological model.

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