Non-perpetual Eternal Inflation and the Emergent de Sitter Swampland Conjecture
arXiv:2401.17730 · doi:10.1140/epjc/s10052-024-13242-2
Abstract
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.
arXiv comment8 pages, 1 figure. v3: Major Revised
References in corpus (45)
- Planck 2018 results. X. Constraints on inflation
- Particle Physics Models of Inflation and the Cosmological Density Perturbation
- First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Implications for Inflation
- DBI in the Sky
- Observational Signatures and Non-Gaussianities of General Single Field Inflation
- Scalar Speed Limits and Cosmology: Acceleration from D-cceleration
- Distance and de Sitter Conjectures on the Swampland
- Primordial Non-Gaussianities from Inflation Models
- How long before the end of inflation were observable perturbations produced?
- Bounds on Slow Roll and the de Sitter Swampland
- Non-Gaussianities in Single Field Inflation and their Optimal Limits from the WMAP 5-year Data
- Horizon crossing and inflation with large η
- Eternal inflation and its implications
- Large Non-Gaussianities in Single Field Inflation
- Ultra Slow-Roll Inflation and the non-Gaussianity Consistency Relation
- Violation of non-Gaussianity consistency relation in a single field inflationary model
- Correlation Functions in Stochastic Inflation
- Towards an Explicit Model of D-brane Inflation
- A Delicate Universe
- Quantum diffusion during inflation and primordial black holes
- Meson spectroscopy from holomorphic probes on the warped deformed conifold
- Improved Estimates of Cosmological Perturbations
- On the divergences of inflationary superhorizon perturbations
- Supergravity based inflation models: a review
- More hilltop inflation models
- Ultra-slow-roll inflation with quantum diffusion
- String Inflation After Planck 2013
- Seeking String Theory in the Cosmos
- Eternal Inflation and the Refined Swampland Conjecture
- A new algorithm for calculating the curvature perturbations in stochastic inflation
- The large-N running of the spectral index of inflation
- Accidental Inflation in String Theory
- A Statistical Approach to Multifield Inflation: Many-field Perturbations Beyond Slow Roll
- The Phase Transition to Eternal Inflation
- Towards a measurement of the spectral runnings
- Conditions for (No) Eternal Inflation
- String moduli inflation: an overview
- Challenges for String Cosmology
- Inflation at Low Scales: General Analysis and a Detailed Model
- Features from the non-attractor beginning of inflation
- Eternal Hilltop Inflation
- On the running of the spectral index to all orders: a new model dependent approach to constrain inflationary models
- TASI lectures on cosmological observables and string theory
- Negative running prevents eternal inflation
- Sharp Predictions from Eternal Inflation Patches in D-brane Inflation