Cosmic expansion history analysis with Hubble parametrization in Q n gravity
Koussour M. Myrzakulov N.
1 June 2024World Scientific
International Journal of Geometric Methods in Modern Physics
2024#21Issue 7
In this paper, we propose a specialized parameterization for the Hubble parameter, inspired by ΛCDM cosmology, to investigate the cosmic expansion history of the Universe. This parameterization is employed to analyze the universes late-time behavior within the context of Qn gravity, where Q represents non-metricity. By using data from 57 Hubble data points, 1048 supernova (SNe) data points, and six Baryon Acoustic Oscillation (BAO) data points, we determine the optimal values for the model parameters. Additionally, we explore three distinct cosmological models based on the parameter n, specifically when it takes on the values of 0.55, 1.5 and 2.0. The results of our analysis indicate that our proposed parameterization, along with the associated models for different values of n, predicts an accelerated cosmic expansion phase.
f (Q) gravity , Hubble parametrization , observational data
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Department of Physics, University of Hassan II, Casablanca, Morocco
L. N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Department of Physics
L. N. Gumilyov Eurasian National University
10 лет помогаем публиковать статьи Международный издатель
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