Скачать или смотреть Large Blue Spectral Index from a Conformal Limit of a Rotating Complex Scalar | Sai Chaitanya.

In the talk, Dr Sai Chaitanya Tadepalli discusses how a large blue spectral index can be achieved even with a quartic potential term linked to the Peccei-Quinn symmetry breaking radial partner. He utilises the fact that a large radial direction with a quartic term can naturally induce a ‘conformal limit’, producing an isocurvature spectral index of 3. This limit can also be seen as the angular momentum of the initial conditions slowing the radial field or as a superfluid limit. This large angular momentum necessitates a careful quantization process to establish the vacuum state.

Dr Tadepalli outlines the parametric region that aligns with axion dark matter and isocurvature cosmology and discusses prospects for future detection.

Dr Tadepalli, a postdoctoral fellow at Indiana University visited Ahmedabad University to deliver a talk on Large Blue Spectral Index from a Conformal Limit of a Rotating Complex Scalar as part of the university’s Mathematical and Physical Sciences Divisional Research Seminar.