26–31 Mar 2023
UZ Obergurgl
Europe/Zurich timezone

Probing extended Starobinsky inflation with CMB and 21cm intensity mapping (15+5)

29 Mar 2023, 19:15
20m
UZ Obergurgl

UZ Obergurgl

University Center Obergurgl Gaisbergweg 5 6456 Obergurgl Austria

Speaker

Tanmoy Modak

Description

The Starobinsky inflation where the general relativity is extended by $R^2$ term is one of bestfit model to Planck data. Higher order modification to Starobinsky model with $R^3$ term is of great interest since it may be induced by quantum gravity effects. In this article we
study the potential of future CMB experiments LiteBIRD and CMB stage four (CMB-S4) and 21cm intensity mapping by Square Kilometre Array (SKA) to probe Starobinsky model extended by R3 term. Such an extend model would provide intriguing insight about inflationary dynamics.

Author

Tanmoy Modak

Co-authors

Mr Lennart Röver (Heidelberg University) Prof. Bj ̈orn Malte Sch ̈afer (Heidelberg University) Mr Benedikt Schosser (Heidelberg University) Tilman Plehn

Presentation materials