Atlantic General Relativity 2024

Session

Session 2.4

19 Jun 2024, 16:00

307 (Tilley Hall, University of New Brunswick)

23. What do we really know about quantum gravity?

Viqar Husain

19/06/2024, 16:00

Oral

I will attempt a brief overview of a few ideas about quantum gravity and what they might reveal about a final theory.

3. A dynamical systems formulation for inhomogeneous LRS-II spacetimes

Saikat Chakraborty (The Institute for Fundamental Study, Naresuan University, Thailand)

Oral

I will introduce a dynamical system formulation for inhomogeneous LRS-II spacetimes using the covariant 1+1+2 decomposition approach, that we recently proposed in 2404.01161. Our approach describes the LRS-II dynamics from the point of view of a comoving observer. Promoting the covariant radial derivatives of the covariant dynamical quantities to new dynamical variables and utilizing the...

4. On the impact of 𝑓 (𝑄) gravity on the Large Scale Structure

Simran Arora (BITS-Pilani, Hyderabad Campus, India)

Oral

We investigate the exponential 𝑓 (𝑄) symmetric teleparallel gravitation, namely 𝑓 (𝑄) = 𝑄 + 𝛼𝑄_0(1 − 𝑒^(−𝛽√𝑄/𝑄_0)) using ME-GADGET code to probe the structure formation with box sizes 𝐿_box = 10/100 Mpc/ℎ and middle resolution 𝑁^1/3 = 512. To reproduce viable cosmology within the aforementioned modified gravity theory, we first perform Markov Chain Monte Carlo (MCMC) sampling on...