Speaker
Rajeev Kumar Jain
Description
We examine the imprints of sharp departures from slow-roll inflation which lead to strong features in the scalar power spectra, on the spectra of the primordial electromagnetic fields generated during inflation. In particular, we find that an epoch of ultra-slow roll inflation leads to a severe suppression of the magnetic field spectrum over large scales. We also make use of the code magcamb to calculate the effects of the magnetic fields on the anisotropies in the cosmic microwave background and investigate if the magnetic field spectra with features are broadly consistent with the current observational constraints.
