10.9k citations
- Instituto de Física CorpuscularES3.6k papers
- Centre National de la Recherche ScientifiqueFR2.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.2k papers
- Rutherford Appleton LaboratoryGB2.2k papers
- University of LiverpoolGB2.2k papers
- University of ManchesterGB2.2k papers
- National Institute for Subatomic PhysicsNL2.2k papers
- University of EdinburghGB2.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2.1k papers
- Heidelberg UniversityDE2.1k papers
- European Organization for Nuclear ResearchCH2k papers
11 papers · 2 filters
Crystal clear lessons on the microstructure of space-time and modified gravity
Francisco S. N. Lobo, Gonzalo J. Olmo, D. Rubiera-Garcia
We argue that a microscopic structure for space-time such as that expected in a quantum foam scenario, in which microscopic wormholes and other topological structures should play a…
Thick brane in gravity with Palatini dynamics
D. Bazeia, L. Losano, R. Menezes +2
This work deals with modified gravity in five dimensional spacetime. We study a thick Palatini brane, that is, a braneworld scenario described by an anti-de Sitter warped ge…
Two-twistor particle models and free massive higher spin fields
J. A. de Azcarraga, S. Fedoruk, J. M. Izquierdo +1
We present D=3 and D=4 models for massive particles moving in a new type of enlarged spacetime, with D-1 additional vector coordinates, which after quantization lead to the towers…
Infrared lessons for ultraviolet gravity: the case of massive gravity and Born-Infeld
Jose Beltrán Jiménez, Lavinia Heisenberg, Gonzalo J. Olmo
We generalize the ultraviolet sector of gravitation via a Born-Infeld action using lessons from massive gravity. The theory contains all of the elementary symmetric polynomials and…
Born-Infeld gravity and its functional extensions
Sergei D. Odintsov, Gonzalo J. Olmo, D. Rubiera-Garcia
We investigate the dynamics of a family of functional extensions of the (Eddington-inspired) Born-Infeld gravity theory, constructed with the inverse of the metric and the Ricci te…
Brane-world and loop cosmology from a gravity-matter coupling perspective
Gonzalo J. Olmo, D. Rubiera-Garcia
We show that the effective brane-world and the loop quantum cosmology background expansion histories can be reproduced from a modified gravity perspective in terms of an gra…