https://doi.org/10.1140/epjc/s10052-023-11598-5
Regular Article - Theoretical Physics
Evolutionary behaviour of cosmological parameters with dynamical system analysis in f(Q, T) gravity
1
Department of Mathematics, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, 500078, Hyderabad, India
2
Department of Physics, Indira Gandhi Institute of Technology, Sarang, 759146, Dhenkanal, Odisha, India
d
bivu@hyderabad.bits-pilani.ac.in
Received:
28
February
2023
Accepted:
7
May
2023
Published online:
27
May
2023
We have investigated the accelerating behaviour of the Universe in f(Q, T) gravity in an isotropic and homogeneous space-time. We have initially derive the dynamical parameters in the general form of 
(Xu et al. in Eur Phys J C 79:708, 2019) and then split it into two cases (i) one with 
and the (ii) other with 
. In the first case, it reduces to the linear form of the functional f(Q, T) and second case leads to the higher power of the nonmetricity Q. In an assumed form of the hyperbolic scale factor, the models are constructed and its evolutionary behaviours are studied. The geometrical parameters as well the equation of state parameter are obtained and found to be in the preferred range of the cosmological observations. Marginal variation has been noticed in the behaviour of 
and 
at present time. The violation of strong energy conditions in both the cases are shown. The dynamical system analysis for the models has been performed.
© The Author(s) 2023
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