Supratik Pal

Aug 7, 2024 | link.aps.org | Supratik Pal |Arko Bhaumik |B.T. Road

Assuming a slow-roll inflationary model where conformal invariance of the Maxwell action is broken via a nonminimal kinetic coupling term, we investigate the non-Gaussian three-point cross-correlation function between the primordial curvature perturbation and the primordial magnetic field, under a fairly general choice of initial vacua for both the scalar and the gauge field sectors.

Jan 30, 2024 | arxiv.org | Soumadeep Saha |Purba Mukherjee |Utpal Garain |Supratik Pal