Physics

Dr. Brajesh Gupt
Penn State University, USA

The standard model of cosmology in conjunction with inflation is a robust paradigm of the evolution of our Universe from today all the way up to the GUT energy scale. However, the framework fails to provide a faithful understanding of the physics of Planck scale since it excludes quantum gravity correction. Furthermore, recent observations reveal the presence of large scale CMB anomalies which could be signatures of new physics preceding inflation. I will describe a quantum gravitational extension of the current inflationary paradigm and its possible connection with the CMB anomalies. I will highlight the predictions for the future observations and potential avenues where the interplay between the UV physics of very early Universe and the IR behavior of large scale cosmological perturbations can have interesting implications for late time Universe.