88 citations · 310 across the 13 of their papers we have counts for
13 papers
Chiral gravitational waves and primordial black holes in UV-protected Natural Inflation
Juan P. Beltrán Almeida, Nicolás Bernal, Dario Bettoni +1
We consider an UV-protected Natural Inflation scenario involving Chern-Simons-like interactions between the inflaton and some beyond the Standard Model gauge fields. The accelerate…
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…
de Sitter symmetries and inflationary scalar-vector models
Juan P. Beltrán Almeida, Josué Motoa-Manzano, César A. Valenzuela-Toledo
In this paper, we study the correspondence between a field theory in de Sitter space in -dimensions and a dual conformal field theory in a euclidean space in -dimensions.…
Hidden Inflaton Dark Matter
Juan P. Beltrán Almeida, Nicolás Bernal, Javier Rubio +1
If cosmic inflation was driven by an electrically neutral scalar field stable on cosmological time scales, the field necessarily constitutes all or part of dark matter (DM). We stu…
Non-minimally Coupled Pseudoscalar Inflaton
Juan P. Beltrán Almeida, Nicolás Bernal
We consider a scenario in which the inflaton is a pseudoscalar field non-minimally coupled to gravity through a term of the form . The pseudoscalar is also coup…
de Sitter symmetries and inflationary correlators in parity violating scalar-vector models
Juan P. Beltrán Almeida, Josué Motoa-Manzano, César A. Valenzuela-Toledo
In this paper we use conformal field theory techniques to constrain the form of the correlations functions of an inflationary scalar-vector model described by the interaction term…