Investigating the compatibility of exact solutions in Weyl-Type f(Q, T) gravity with observational data
Koussour M. Myrzakulova S. Myrzakulov N.
15 September 2024World Scientific
International Journal of Geometric Methods in Modern Physics
2024#21Issue 10
In this study, we investigate the dynamics of the Universe during the observed late-Time acceleration phase within the framework of the Weyl-Type f(Q,T) theory. Specifically, we consider a well-motivated model with the functional form f(Q,T) = αQ + β 6κ2 T, where Q represents the scalar of non-metricity and T denotes the trace of the energy-momentum tensor. In this context, the non-metricity Qμαβ of the space-Time is established by the vector field wμ. The parameters α and β govern the gravitational field and its interaction with the matter content of the Universe. By considering the case of dust matter, we obtain exact solutions for the field equations and observe that the Hubble parameter H(z) follows a power-law behavior with respect to redshift z. To constrain the model parameters, we analyze various datasets including the Hubble, Pantheon datasets, and their combination. Our results indicate that the Weyl-Type f(Q,T) theory offers a viable alternative to explain the observed late-Time acceleration of the Universe avoiding the use of dark energy.
accelerated expansion , dark energy , Hubble parameter , Late-Time cosmology , Weyl-Type f (Q, T) gravity
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Quantum Physics and Magnetism Team, LPMC, Faculty of Science Ben mSik, Casablanca Hassan II University, Morocco
L. N. Gumilyov Eurasian National University, Astana, 010008, Kazakhstan
Ratbay Myrzakulov Eurasian International Centre for Theoretical Physics, Astana, 010009, Kazakhstan
Quantum Physics and Magnetism Team
L. N. Gumilyov Eurasian National University
Ratbay Myrzakulov Eurasian International Centre for Theoretical Physics
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