Kantoswki-Sachs model with a running cosmological constant and radiation

Autor: Oliveira, Vinicius G., de Oliveira-Neto, Gil, Shapiro, Ilya L.
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: The simplest anisotropic model of the early Universe is the one with two conformal factors, which can be identified as Kantowski-Sachs metric, or the reduced version of the Bianchi-I metric. To fit the existing observational data, it is important that the anisotropy is washed out in the early stage of the evolution. We explore the possible effect of the running cosmological constant (RCC) on the dynamics of isotropy, in the case of the space filled by radiation.
Comment: The paper has 16 pages and 16 figures
Databáze: arXiv