70 citations · 269 across the 12 of their papers we have counts for
12 papers
Multifield curved solid: Early dark energy and perturbation instabilities
Juan P. Beltrán Almeida, Alejandro Guarnizo, Thiago S. Pereira +1
We introduce a multifield dark energy model with a nonflat field-space metric, in which one field is dynamical while the others have constant spatial gradients. The model is predic…
Dynamical analysis of cosmological models with non-Abelian gauge vector fields
Alejandro Guarnizo, J. Bayron Orjuela-Quintana, César A. Valenzuela-Toledo
In this paper we study some models where non-Abelian gauge vector fields endowed with a SU(2) group representation are the unique source of inflation and dark energy. These models…
Topological mass generation and forms
Juan P. Beltrán Almeida, Alejandro Guarnizo, Lavinia Heisenberg +2
In this work we revisit the topological mass generation of 2-forms and establish a connection to the unique derivative coupling arising in the quartic Lagrangian of the systematic…
-form quintessence: exploring dark energy of forms coupled to a scalar field
Alejandro Guarnizo, Juan P. Beltrán Almeida, César A. Valenzuela-Toledo
We consider a model based on form kinetic Lagrangians in the context of dark energy. The Lagrangian of the model is built with kinetic terms of the field strength for each -…
Anisotropic -form dark energy
Juan P. Beltrán Almeida, Alejandro Guarnizo, Ryotaro Kase +2
We study the dynamics of dark energy in the presence of a 2-form field coupled to a canonical scalar field . We consider the coupling proportional to $e^{-μϕ/M_{\rm pl}} H_{αβγ}…
Anisotropic inflation with coupled -forms
Juan P. Beltrán Almeida, Alejandro Guarnizo, Ryotaro Kase +2
We study the cosmology in the presence of arbitrary couplings between -forms in 4-dimensional space-time for a general action respecting gauge symmetry and parity invariance. Th…