2 papers
astro-ph.CO2026
Chiral gravitational waves from multi-phase magnetogenesis
H. V. Ragavendra, Gianmassimo Tasinato, L. Sriramkumar
Cosmological vector fields are central to many early-Universe phenomena, including inflationary dynamics, primordial magnetogenesis, and dark-matter scenarios. However, constructin…
astro-ph.CO2025
Cross-correlation between the curvature perturbations and magnetic fields in pure ultra slow roll inflation
Sagarika Tripathy, Debika Chowdhury, H. V. Ragavendra +1
Motivated by the aim of producing significant number of primordial black holes, over the past few years, there has been a considerable interest in examining models of inflation inv…