3 papers
astro-ph.CO2026
A solid unification of the dark sector
Jose Beltrán Jiménez, María Pérez Garrote, Florencia A. Teppa Pannia +1
We construct a unified description of dark matter and dark energy in terms of a single dark component that behaves as a pressureless fluid in the early Universe and undergoes a tra…
gr-qc2024
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…
astro-ph.CO2024
On Evidence for Elastic Interactions in the Dark Sector
Jose Beltrán Jiménez, Dario Bettoni, David Figueruelo +1
The increasing quality of cosmological data has revealed some tensions that could be signalling the necessity of incorporating new physics into our cosmological model. One particul…