AT1 - Extended Theories of Gravity and Quantum Cosmology |
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Speaker |
Sharif, Muhammad |
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| Talk Title |
Stability of Einstein Universe in Matter-Curvature Coupling Gravity |
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Abstract |
This talk investigates the existence and stability of the Einstein universe in the context of f(R,T,Q) gravity, where Q= RµTµ. Considering linear homogeneous perturbations around scale factor and energy density, we formulate static as well as perturbed field equations. We parameterize the stability regions corresponding to conserved as well as non-conserved energy-momentum tensor using linear equation of state parameter for particular models of this gravity. The graphical analysis concludes that for a suitable choice of parameters, the stable regions of the Einstein universe are obtained which indicates that the big-bang singularity can be avoided successfully by the emergent mechanism in non-minimal matter-curvature coupled gravity. |
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