17–22 Aug 2025
Utop Marina Hotel & Resort, Yeosu, Korea
Asia/Seoul timezone

Reconstruction of DBI Scalar field using Gauassian Process

Not scheduled
20m
Utop Marina Hotel & Resort, Yeosu, Korea

Utop Marina Hotel & Resort, Yeosu, Korea

Poster

Speaker

Mr Sayantan Ghosh (Research scholar, Birla Institute of Technology and Science, Hyderabad campus.)

Description

In this talk, I will provide an overview of our work on cosmology in the presence of scalar fields, focusing on symmetric teleparallel gravity. Using dynamical system analysis, we investigate the late-time evolution of the universe within this framework.

I will begin with a concise introduction to symmetric teleparallel gravity, tracing its conceptual development from Weyl geometry to modern observational applications. After outlining the essentials of dynamical system analysis, I will present our findings on scalar fields and DBI fields in modified $f(Q)$ gravity. Additionally, I will discuss our approach to curvature perturbations in a dynamical system context, extending beyond the conventional conformal Newtonian gauge.

Finally, I will conclude with a brief look at our ongoing work on observational tests and phenomenological implications of these models

Primary author

Mr Sayantan Ghosh (Research scholar, Birla Institute of Technology and Science, Hyderabad campus.)

Presentation materials

There are no materials yet.