34 citations · 41 across the 8 of their papers we have counts for
8 papers
A note on oscillons: non-negligible metric fluctuations during preheating
Daniel del-Corral, Paolo Gondolo, K. Sravan Kumar +1
The dominant lattice approach to post-inflationary preheating and oscillon formation evolves an inhomogeneous inflaton field on a spatially homogeneous Friedmann-Lemaître-Robertson…
Reconstructing Early Primordial Black Hole Domination from Gravitational-Wave Backgrounds
Daniel del-Corral, Angus Spalding
Primordial Black Holes (PBHs) with masses below g occupy an interesting region of parameter space that is largely inaccessible to conventional observations. Desp…
Primordial black holes through preheating instabilities in -attractor models
Daniel del-Corral, Paolo Gondolo, K. Sravan Kumar +1
In this work, we explore the production of primordial black holes (PBHs) within the context of -attractor inflationary models, focusing on the preheating phase following inflati…
Scalar-Induced Gravitational Waves from self-resonant preheating in -attractor models
Daniel del-Corral, Paolo Gondolo, K. Sravan Kumar +1
After the inflationary phase, the universe enters the preheating phase, during which the inflaton field rolls down its potential and oscillates. When the potential significantly de…
Gravitational waves from primordial black hole dominance: The effect of inflaton decay rate
Daniel del-Corral, K. Sravan Kumar, João Marto
In this work, we explore primordial black holes (PBH) formation scenario during the post-inflationary preheating stage dominated by the inflaton field. We consider, in particular,…
Self-resonance during preheating: The case of -attractor models
Daniel del-Corral
In this paper, for the first time, we obtain a new class of solutions for the Hill-type differential equations, which emerge in the preheating self-resonance phase of the expanding…
Revisiting primordial black holes formation from preheating instabilities: the case of Starobinsky inflation
Daniel del-Corral, Paolo Gondolo, K. Sravan Kumar +1
In recent years, the formation of primordial black holes (PBH) in the early universe inflationary cosmology has garnered significant attention. One plausible scenario for primordia…
Breaking of isospectrality of quasinormal modes in nonrotating loop quantum gravity black holes
Daniel del-Corral, Javier Olmedo
We study the quasinormal frequencies of three effective geometries of nonrotating regular black holes derived from loop quantum gravity. Concretely, we consider the Ashtekar-Olmedo…