Quintessential f (G) gravity with statistically fitting of H (z)
Shekh S.H. Husain A. Chaudhary H. Samdurkar S.W. Myrzakulov N.
20 July 2024World Scientific
Modern Physics Letters A
2024#39Issue 21-22
Inspired by high-energy physics and by considering standard gravity theory as the low-energy limit of quantum theory, the modification of general relativity as R+f(G) has been proposed. This paper is dedicated to investigating the cosmological model of modified Gauss-Bonnet gravity in four dimensions. General field equations for the four-dimensional Friedmann-Robertson-Walker metric are given in detail. Also, it is well known that Hubble parameter H(z) measurements are helpful for the inference of cosmological model parameters. We try to explain the MCMC statistical approach used to calculate Hubbles parameter. The resulting form of H(z) was limited using Cosmic Chronometric data, Standard Candles SN Ia from Pantheon, and Baryon Acoustic Oscillations to obtain the best match values by using the regression equation. Finally, to examine the late-Time dynamics of our Universe, the behavior of physical and kinematic variables like the deceleration parameter (q), State-finder parameters {r,s}, diagnostic parameter (Om(z)), equation of state parameter as well as the behavior of energy conditions versus redshift with the parameter values are presented.
cosmology , dark energy , Modified gravity , statistically fitting
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Department of Mathematics, S. P. M. Science and Gilani Arts Commerce College, Maharashtra, Yavatmal, Ghatanji, 445301, India
Department of Mathematics, Narayanrao Kale Smurti Model College Karanja (Gha), Maharashtra, Wardha, 442203, India
Department of Applied Mathematics, Delhi Technological University, Delhi, 110042, India
Department of Mathematics, Vidya Vikas Arts, Commerce and Science College, Samudrapur, Wardhac Maharashtra, 442305, India
L.N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Ratbay Myrzakulov Eurasian International Center for Theoretical Physics, Astana, 010009, Kazakhstan
Department of Mathematics
Department of Mathematics
Department of Applied Mathematics
Department of Mathematics
L.N. Gumilyov Eurasian National University
Ratbay Myrzakulov Eurasian International Center for Theoretical Physics
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