Zobrazeno 1 - 10
of 574
pro vyhledávání: '"Hidalgo, Juan P."'
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 field. During such an epoch, perturbations in the inflaton virialize
Externí odkaz:
http://arxiv.org/abs/2405.19271
Conceptualizing a porous media as a network of conductors sets a compromise between the oversimplifying conceptualization of the media as a bundle of capillary tubes and the computationally expensive and unobtainable detailed description of the media
Externí odkaz:
http://arxiv.org/abs/2403.13519
Diluted pore networks or networks that are obtained directly from image analysis are commonly used to evaluate flow through complex porous media. These networks are often subjected to singular points and regions, that is, isolated sub-networks that a
Externí odkaz:
http://arxiv.org/abs/2403.13462
Media classification and the construction of pore network models from binary images of porous media hinges on accurately characterizing the pore space. We present an efficient method for (i) locating critical points, that is, pore body and throat cen
Externí odkaz:
http://arxiv.org/abs/2403.12591
Autor:
Carrion, Karim, Carrilho, Pedro, Mancini, Alessio Spurio, Pourtsidou, Alkistis, Hidalgo, Juan Carlos
We present constraints on the Dark Scattering model through cosmic shear measurements from the Kilo Degree Survey (KiDS-1000), using an accelerated pipeline with novel emulators produced with $\tt{CosmoPower}$. Our main emulator, for the Dark Scatter
Externí odkaz:
http://arxiv.org/abs/2402.18562
Autor:
Padilla, Luis E., Hidalgo, Juan Carlos, Gomez-Aguilar, Tadeo D., Malik, Karim A., German, Gabriel
In this paper we review the possible mechanisms for the production of primordial black holes (PBHs) during a slow-reheating period {in which the energy transfer of the inflaton field to standard model particles becomes effective at slow temperatures}
Externí odkaz:
http://arxiv.org/abs/2402.03542
We study a generalization of the the Starobinsky model adding a term of the form $R^{2p}$ to the Einstien-Hilbert action. We take the power $p$ as a parameter of the model and explore the constraints from CMB plus BAO data through a Bayesian analysis
Externí odkaz:
http://arxiv.org/abs/2312.10924
The study of reheating in inflationary models is crucial for understanding the early universe and gaining insights into inflationary dynamics and parameters. The reheating temperature $T_{re}$ and the duration of the reheating phase, quantified by th
Externí odkaz:
http://arxiv.org/abs/2310.05221
We study how the bounds on the abundance of Primordial Black Holes (PBHs) and the constraints to the power spectrum (PS) are modified if a non-standard evolution phase takes place between the end of inflation and the Standard Big Bang (SBB). The cons
Externí odkaz:
http://arxiv.org/abs/2308.04642
This paper focuses on the Starobinsky model of inflation. We derive solutions for various cosmological observables, such as the scalar spectral index $n_s$, the tensor-to-scalar ratio $r$ and their runnings, as well as the number of $e$-folds of infl
Externí odkaz:
http://arxiv.org/abs/2307.08257