Cosmology with viscous generalized Chaplygin gas in $f(Q)$ gravity

Abstract

We use the hybrid model of bulk viscosity and generalized chaplygin gas (GCG), named the viscous generalized chaplygin gas (VGCG) model, which is thought to be an alternate dark fluid of the universe. We explore the dynamics of the VGCG model in the framework of the non-metricity $f(Q)$ gravity using the functional form $f(Q)=\beta Q^n$, where $\beta$ and $n$ are arbitrary constants. For the purpose of constraining model parameters, we use recent observational datasets such as Observational Hubble data, Baryon Acoustic Oscillations, and Type $Ia$ supernovae data. According to our study, the evolution of the deceleration parameter $q$ and the equation of state (EoS) parameter $w$ show a transition from deceleration to an acceleration phase and its deviation from the $\Lambda$CDM model.

Annals of Physics published version

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Cited by in corpus (4)

• Validity of energy conditions of matter in traversable wormholes under the $f(Q)$ modified gravity theory
• Revisiting kink-like parametrization and constraints using OHD/Pantheon+/BAO samples
• Cosmological dynamics of interacting dark energy and dark matter in $f(Q)$ gravity
• Observational Constraints on Chaplygin Gas Models in Non-Minimally Coupled Power Law $f(Q)$ Gravity with Quasars