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5–9 Dec 2022
Australia/Sydney timezone

Matter Bounce Scenario in Extended Symmetric Teleparallel Gravity

8 Dec 2022, 15:20
20m
149 (Old Main Building)

149

Old Main Building

Gravity and gravitational waves Gravity - Dark Energy

Speaker

Mr Amarkumar Agrawal (BITS-Pilani, Hyderabad Campus, India.)

Description

In this paper, we have shown the matter bounce scenario of the Universe in an extended symmetric teleparallel gravity, the f(Q) gravity. Motivated by the bouncing scenario and loop quantum cosmology (LQC), the form of the function f(Q) has been obtained at the backdrop of Friedmann-Lemai^tre-Robertson Walker (FLRW) space-time. Considering the background cosmology dominated by dust fluid, the e-folding parameter has been expressed, which contains the nonmetricity term. The dynamics of the model have been studied through the phase space analysis, where both the stable and unstable nodes are obtained. Also, the stability analysis has been performed with the first-order scalar perturbation of the Hubble parameter and matter energy density to verify the stability of the model.

Author

Mr Amarkumar Agrawal (BITS-Pilani, Hyderabad Campus, India.)

Co-authors

Prof. Bivudutta Mishra (BITS-Pilani, Hyderabad Campus, India.) Ms Poonam Agrawal

Presentation materials