Extended General Relativity: Gravitational waves from an isotropic and homogeneous collapse

A Morales, M Bellini - Physics of the Dark Universe, 2021 - Elsevier
Abstract Using an extended General Relativistic formalism with boundary terms included
that describe sources, we study the non-perturbative Gravitational Waves emitted from a …

[HTML][HTML] Extended General Relativity:(3+ 1)-anyons in a preinflationary cosmological model

M Bellini, PA Sánchez - The European Physical Journal C, 2021 - Springer
We propose an extended General Relativistic formalism with boundary terms included, that
describes the dynamics of quantum spinor fields, which can take intermediate values …

Ricci flow in general relativity: dynamics of gluon fields on an arbitrary curved background from unified spinor fields

M Bellini - Physica Scripta, 2021 - iopscience.iop.org
We describe the gluon field dynamics from Unified Spinor Fields, taking into account the
quantum self-interactions which come from a Ricci flow in a varied Einstein-Hilbert action. A …

Fermionic origin of dark energy in the inflationary universe from unified spinor fields

MRA Arcodía, M Bellini - Physica Scripta, 2020 - iopscience.iop.org
In this work we explore the boundary conditions in the Einstein–Hilbert action, by
considering a displacement from the Riemannian manifold to an extended one. The latter is …

Aspects of (4+ 4)-Kaluza–Klein type theory

JA Nieto, JEM Aguilar - Physica Scripta, 2019 - iopscience.iop.org
We develop a type of Kaluza–Klein formalism in (4+ 4)-dimensions. In the framework of this
formalism, we obtain a new kind of Schwarzschild metric solution that, via Kruskal …

Quantum magnetic monopoles at the Planck era from unified spinor fields

M Bellini - Physics of the Dark Universe, 2020 - Elsevier
Abstract I use Unified Spinor Fields (USF), to discuss the creation of magnetic monopoles
during preinflation, as excitations of the quantum vacuum coming from a condensate of …

Geometrization of gravito-electromagnetic interactions from boundary conditions in the variational principle

JM Romero, LS Ridao, M Bellini - The European Physical Journal C, 2019 - Springer
We study the conditions of integrability when the boundary terms are considered in the
variation of the geometric contribution of the Einstein–Hilbert action. We explore the …

Quantum thermodynamics in a static de Sitter space-time and initial state of the universe

JI Musmarra, M Bellini - The European Physical Journal C, 2019 - Springer
Abstract Using Relativistic Quantum Geometry we study back-reaction effects of space-time
inside the causal horizon of a static de Sitter metric, in order to make a quantum …

Exponential collapse with variable time scale driven by a scalar field

JM Hernández, M Bellini, C Moreno - Physics of the Dark Universe, 2019 - Elsevier
We study the dynamic collapse driven by a scalar field, when a relativistic observer falls co-
moving with the collapse and cross the horizon of a Schwarzschild black-hole (BH), at t= t 0 …

[PDF][PDF] Geometrization of interactions from boundary conditions in the variational principle: Gravitational waves and electrodynamics

JM Romero, LS Ridao, M Bellini - arXiv preprint arXiv:1904.00780, 2019 - academia.edu
We study the conditions of integrability for the boundary terms considered in the geometric
contribution of the Einstein-Hilbert action, when it is varied. We explore the emergent …