2 papers
astro-ph.CO2026
Suppressed Magnetogenesis from Ultralight Dark Matter due to Finite Conductivity
Ramkishor Sharma, Samarth Majumdar, Divya Sachdeva
Recently, a mechanism for generating astrophysically relevant magnetic fields via ultralight pseudoscalar dark matter, through the coupling term in t…
astro-ph.CO2024
Lattice simulations of axion-U(1) inflation: gravitational waves, magnetic fields, and scalar statistics
Ramkishor Sharma, Axel Brandenburg, Kandaswamy Subramanian +1
We numerically study axion-U(1) inflation, focusing on the regime where the coupling between axions and gauge fields results in significant backreaction from the amplified gauge fi…