https://doi.org/10.1140/epjc/s10052-024-13242-2
Regular Article - Theoretical Physics
Non-perpetual eternal inflation and the emergent de Sitter Swampland conjecture
Department of Physics, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
Received:
6
May
2024
Accepted:
13
August
2024
Published online:
2
September
2024
We introduce a novel correlation, 
- 
, connecting CMB parameters to the required total e-folds for eternal inflation. This correlation provides a robust tool for evaluating eternal (string) inflation models using CMB data and explores the impact of quantum fluctuations on non-attractor phases. By generalizing eternal inflation criteria, our parameterization simplifies rigorous testing of predictions and reveals a link between refined de Sitter conjecture parameters and the eternal nature of the cosmic landscape. This points to a general tendency towards eternal behavior in low-energy effective field theories within the landscape, opening the possibility for our cosmic stage to potentially embrace a ’multiverse’ scenario.
© The Author(s) 2024
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