26 citations · 58 across the 7 of their papers we have counts for
7 papers
Primordial turbulence from inflation: a new inflaton-driven turbulent regime
Oksana Iarygina, Axel Brandenburg
For the first time, we establish a direct connection between inflationary dynamics and the subsequent magnetohydrodynamic evolution. Starting from vacuum fluctuations, we self-cons…
Schwinger effect in axion inflation on a lattice
Oksana Iarygina, Evangelos I. Sfakianakis, Axel Brandenburg
We present the first lattice simulations of the nonlinear evolution after axion inflation by self-consistently incorporating currents arising from Schwinger pair production. The ta…
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…
Magnetogenesis from axion-SU(2) inflation
Axel Brandenburg, Oksana Iarygina, Evangelos I. Sfakianakis +1
We describe a novel proposal for inflationary magnetogenesis by identifying the non-Abelian sector of Spectator Chromo Natural Inflation (SCNI) with the sector…
Intergalactic medium rotation measure of primordial magnetic fields
Salome Mtchedlidze, Paola Domínguez-Fernández, Xiaolong Du +5
The Faraday rotation effect, quantified by the Rotation Measure (RM), is a powerful probe of the large-scale magnetization of the Universe - tracing magnetic fields not only on gal…
Backreaction of axion-SU(2) dynamics during inflation
Oksana Iarygina, Evangelos I. Sfakianakis, Ramkishor Sharma +1
We consider the effects of backreaction on axion-SU(2) dynamics during inflation. We use the linear evolution equations for the gauge field modes and compute their backreaction on…
Decay of Magnetic Fields in the Early Universe
Mark Hindmarsh, M. Christensson, A. Brandenburg
We study the evolution of a stochastic helical magnetic field generated in the early Universe after the electroweak phase transition, using standard magnetohydrodynamics (MHD). We…