3 papers
hep-ph2025
Cosmic domain walls on a lattice: illusive effects of initial conditions
I. Dankovsky, S. Ramazanov, E. Babichev +2
Evolution of cosmic domain walls (DWs) settles to the scaling solution, which is often assumed to be independent of initial conditions. However, lattice simulations performed in th…
hep-ph2025
Biased domain walls: faster annihilation, weaker gravitational waves
E. Babichev, I. Dankovsky, D. Gorbunov +2
We study the evolution of domain wall networks and their phenomenological implications in a model of a real scalar , where a -symmetry is slightly broken by a potential bia…
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…