5 papers
Viability of generalized -inflation from Planck, ACT, and DESI Data
Gabriel German, Juan Carlos Hidalgo
We study inflationary constraints from reheating on two classes of single-field inflationary models: a generalized -attractor with potential $V(Ï) = V_0 \!\left(1 - \sech^p\!\…
Primordial Black Hole Formation in a Scalar Field Dominated Universe: Investigation of the Critical nature of the Collapse
Luis E. Padilla, Ethan Milligan, David J. Mulryne +1
In this paper, we investigate the critical collapse leading to primordial black hole (PBH) formation in a universe dominated by a self-interacting scalar field with a quartic poten…
Primordial Black Hole Formation in a Scalar Field Dominated Universe
Ethan Milligan, Luis E. Padilla, David J. Mulryne +1
We present a numerical code that solves the Misner-Sharp system for a spherically symmetric cosmological model containing both a scalar field and a perfect fluid. While the code is…
Modeling the 3-point correlation function of projected scalar fields on the sphere
Abraham Arvizu, Alejandro Aviles, Juan Carlos Hidalgo +5
One of the main obstacles for the signal extraction of the three point correlation function using photometric surveys, such as the Rubin Observatory Legacy Survey of Space and Time…
Detecting the Stochastic Gravitational Wave Background from Primordial Black Holes in Slow-reheating Scenarios
Luis E. Padilla, Juan Carlos Hidalgo, Karim A. Malik +1
After primordial inflation, the universe may have experienced a prolonged reheating epoch, potentially leading to a phase of matter domination supported by the oscillating inflaton…