Ponente
Abstract
In this talk, I will present some recent results about the application of techniques inspired by Loop Quantum Gravity to the realm of cosmology. After an introduction to some of the core ideas of Loop Quantum Gravity, I will discuss the case of flat, homogeneous and isotropic spacetimes, which provide a good approximation to our observed Universe at large scales and display a Big Bang singularity in classical General Relativity (at least for conventional matter content). I will show that the loop quantisation leads to a singularity resolution in these spacetimes and compare the corresponding effective dynamics with that of General Relativity. In addition, I will comment on modern developments concerning how this physical picture can be affected by modifications in the definition of the gravitational Hamiltonian operator that generates the cosmological dynamics.
