Rejuvenating the hope of a swampland consistent inflated multiverse with tachyonic inflation in the high energy RS-II Braneworld
Oem Trivedi

TL;DR
This paper explores tachyonic inflation within the high energy RS-II Braneworld framework, demonstrating its compatibility with swampland conjectures and proposing a potential for a quantum gravitationally consistent multiverse.
Contribution
It shows that tachyonic inflation in the RS-II Braneworld can evade swampland constraints and supports the possibility of swampland consistent eternal inflation.
Findings
Tachyonic inflation in RS-II braneworld aligns with swampland criteria.
Eternal inflation conflicts with swampland can be resolved in this scenario.
Generalized Uncertainty Principle may facilitate swampland consistent eternal inflation.
Abstract
The swampland conjectures from string theory have had some really interesting implications on cosmology, in particular on inflationary models. Some models of inflation have been shown to be incompatible with these criterion while some have been shown to be severely fine tuned, with most of these problems arising in single field inflationary models in a General relativistic cosmology. Recent works have although optimistically shown that single field models in more general cosmologies can be consistent with these conjectures and hence there is an optimism that not all such models lie in the swampland. However a paradigm of inflation which has been shown to not be perfectly okay with the conjectures is eternal inflation. So in this work, we discuss Tachyonic inflation in the high energy RS-II Braneworld scenario in the context of the swampland conjectures while also considering the…
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