359 citations · 1.7k across the 47 of their papers we have counts for
48 papers
Tunnelling out of Starobinsky inflation: Raising the spectral tilt
Jose A. R. Cembranos, Jesús Luque, Javier Rubio
We propose a hybrid realization of Starobinsky inflation in which the inflationary epoch ends through vacuum decay. The model consists of an effective two-field system with a metas…
Quantization of Brane-Skyrmions via Physics-Informed Neural Networks
Jose A. R. Cembranos, Alberto García Martín-Caro, Sergio S. Rentero
In this work, we investigate the canonical quantization of topological solitons appearing in braneworld scenarios. In particular, we focus on Brane-Skyrmions, topological field con…
Influence of spatial curvature in cosmological particle production
Jose A. R. Cembranos, Luis J. Garay, Álvaro Parra-López
We analyze cosmological particle production driven by spacetime expansion in the early universe for homogeneous and isotropic cosmologies with positive, negative, and zero spatial…
Probing Cosmic Expansion and Early Universe with Einstein Telescope
Angelo Ricciardone, Mairi Sakellariadou, Archisman Ghosh +52
Over the next two decades, gravitational-wave (GW) observations are expected to evolve from a discovery-driven endeavour into a precision tool for astrophysics, cosmology, and fund…
Effects of massive spin-2 fields on gravitational wave propagation
Jose A. R. Cembranos, Álvaro Cendal, Hector Villarrubia-Rojo
Massive spin-2 fields in addition to the standard massless graviton arise naturally in extensions of general relativity, such as massive bigravity or models with extra dimensions.…
Hydrodynamical Misner-Sharp Formulation for Gravitational Collapse in Scalar-Tensor Theories
Jose A. R. Cembranos, Luis Diaz-Gimenez
We study the problem of gravitational collapse in the context of scalar-tensor theories of Gravity. We introduce a new hydrodynamical formulation in the Einstein frame, inspired by…