ΛCDM model inf(T) gravity: reconstruction, thermodynamics and stability

2013/07/31 by I. G. Salako, I.G Salako, M. E. Rodrigues +7
Physics and Astronomy · #Apparent horizon #Black Holes and Theoretical Physics #Cosmological model #Cosmology #Cosmology and Gravitation Theories #De Sitter universe #Horizon #Laws of thermodynamics #Noncommutative and Quantum Gravity Theories #Point (geometry) #Stability (learning theory) #Universe #gr-qc

paper · pdf · doi:10.1088/1475-7516/2013/11/060

published as JCAP 060, 1475-7516 (2013) · 25 pages, 2 figures, Accepted for publication in Journal of Cosmology and Astroparticle Physics (JCAP)

arxiv created 2013/11/11 · openalex publication_date 2013/11/28 · arxiv updated 2013/12/10 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We investigate some cosmological features of the ΛCDM model in the framework of the generalized teleparallel theory of gravity f ( T ) where T denotes the torsion scalar. Its reconstruction is performed giving rise to an integration constant Q and other input parameters according to which we point out more analysis. Thereby, we show that for some values of this constant, the first and second laws of thermodynamics can be realized in the equilibrium description, for the universe with the temperature inside the horizon equal to that at the apparent horizon. Moreover, still within these suitable values of the constant, we show that the model may be stable using the de Sitter and Power-Law cosmological solutions.

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