3 papers
astro-ph.CO2024
The non-linear dynamics of axion inflation: a detailed lattice study
Daniel G. Figueroa, Joanes Lizarraga, Nicolás Loayza +2
We study in detail the fully inhomogeneous non-linear dynamics of axion inflation, identifying three regimes: weak-, mild-, and strong-backreaction, depending on the duration of in…
astro-ph.CO2024
Gravitational wave and particle emission from a cosmic string loop: local case
Jorge Baeza-Ballesteros, Edmund J. Copeland, Daniel G. Figueroa +1
Using lattice field simulations of the Abelian-Higgs model, we characterize the simultaneous emission of (scalar and gauge) particles and gravitational waves (GWs) by local string…
astro-ph.CO2024
Geometric reheating of the Universe
Daniel G. Figueroa, Nicolas Loayza
We study the post-inflationary energy transfer from the inflaton () into a scalar field () non-minimally coupled to gravity through , considering models with inflato…