Doomsdays in a modified theory of gravity: A classical and a quantum approach

Understand

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.