Journal
PHYSICS LETTERS B
Volume 772, Issue -, Pages 814-818Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2017.07.053
Keywords
Quantum cosmology; Modified theories of gravity; Dark energy doomsdays; Palatini type of theories
Funding
- Santander-Totta fellowship Bolsas de Investigacao Faculdade de Ciencias (UBI) - Santander Totta
- Basque Foundation of Science Ikerbasque
- Basque Government (Spain) [IT956-16]
- FONDOS FEDER (Spanish government) [FIS2014-57956-P]
- Taiwan National Science Council [NSC 97-2112-M-002-026-MY3]
- Leung Center for Cosmology and Particle Astrophysics, National Taiwan University
- [UID/MAT/00212/2013]
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By far cosmology is one of the most exciting subject to study, even more so with the current bulk of observations we have at hand. These observations might indicate different kinds of doomsdays, if dark energy follows certain patterns. Two of these doomsdays are the Little Rip (LR) and Little Sibling of the Big Rip (LSBR). In this work, aside from proving the unavoidability of the LR and LSBR in the Eddington-inspired-Born-Infeld (EiBI) scenario, we carry out a quantum analysis of the EiBI theory with a matter field, which, from a classical point of view would inevitably lead to a universe that ends with either LR or LSBR. Based on a modified Wheeler-DeWitt equation, we demonstrate that such fatal endings seems to be avoidable. (C) 2017 Published by Elsevier B.V.
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