56 citations · 90 across the 11 of their papers we have counts for
5 papers · 1 filter
Physical nonviability of in the scalar-tensor representation
Jose Beltrán Jiménez, Alejandro Jiménez Cano, Tomi S. Koivisto
We show the known pathological character of gravity in its scalar-tensor representation.
Euclidean teleparallel relativity and black hole partition functions
Jose Beltrán Jiménez, Tomi S. Koivisto
The Euclidean path integral approach to quantum gravity is conventionally formulated in terms of the Einstein-Hilbert-York-Gibbons-Hawking action, which requires suitable subtracti…
A class of ghost-free theories in symmetric teleparallel geometry
Antonio G. Bello-Morales, Jose Beltrán Jiménez, Alejandro Jiménez Cano +2
Theories formulated in the arena of teleparallel geometries are generically plagued by ghost-like instabilities or other pathologies that are ultimately caused by the breaking of s…
Non-trivial thick brane realisations with 3-forms
Bruno J. Barros, Jose Beltrán Jiménez
We explore the construction of four-dimensional thick branes supported by massless 3-forms in a five-dimensional bulk space. The required residual Poincaré symmetry on the brane is…
Pathological Character of Modifications to Coincident General Relativity: Cosmological Strong Coupling and Ghosts in $f(\Q)$ Theories
Débora Aguiar Gomes, Jose Beltrán Jiménez, Alejandro Jiménez Cano +1
The intrinsic presence of ghosts in the symmetric teleparallel framework is elucidated. We illustrate our general arguments in theories by studying perturbations in…