Steep Eternal Inflation and the Swampland

Abstract

I investigate whether eternal inflation is possible when the inflaton originally travels upslope the scalar potential and inevitably reaches a turn-around point where its classical kinetic energy momentarily vanishes. This behaviour occurs regardless of the steepness of the potential slope. Such steep eternal inflation, if achieved, would satisfy the recent swampland conjecture and allow eternal inflation in the string landscape.

8 pages, added some text and references

References in corpus (17)

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Cited by in corpus (51)

• Eternal Inflation and the Refined Swampland Conjecture
• A note on Single-field Inflation and the Swampland Criteria
• Rescuing Single Field Inflation from the Swampland
• Bounds on Slow Roll at the Boundary of the Landscape
• Recent developments in warm inflation
• Conditions for (No) Eternal Inflation
• F-theory and Dark Energy
• Dark energy beyond quintessence: Constraints from the swampland
• Pixelated Dark Energy
• Self-Organised Localisation
• Type I Hilltop Inflation and the Refined Swampland Criteria
• Swampland criteria for a dark-energy dominated universe, ensuing from Gaussian process and H(z) data analysis
• Phenomenological Consequences of the Refined Swampland Conjecture
• Dark Energy, the Swampland and the Equivalence Principle
• Stochastic eternal inflation is in the swampland
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• Minimal gauge inflation and the refined Swampland conjecture
• Pleasant behavior of swampland conjectures in the face of specific inflationary models
• Hyperbolic field space and swampland conjecture for DBI scalar
• Brane Constant-roll Inflation
• What does Inflation say about Dark Energy given the Swampland Conjectures?
• Multi-field Inflation in High-Slope Potentials
• Reheating in small-field inflation on the brane: The Swampland Criteria and observational constraints in light of the PLANCK 2018 results
• Relating the scalar weak gravity conjecture and the swampland distance conjecture for an accelerating universe
• Warm Tachyon Inflation and Swampland Criteria
• Eternal Inflation, Entropy Bounds and the Swampland
• Swampland Conjecture and Inflation Model from Brane Perspective
• Emergent Dark Universe and the Swampland Criteria
• Brane inflation and Trans-Planckian censorship conjecture
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• Isocurvature Perturbations of Dark Energy and Dark Matter from the Swampland Conjecture
• A refined trans-Planckian censorship conjecture
• Constraints on dark energy models from the Horndeski theory
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• T-Model Inflation and Bouncing Cosmology
• Inflation, Swampland, and Landscape
• The Swampland and Screened Modified Gravity
• Gauss-Bonnet inflation and swampland
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• Compact objects and the swampland
• Rejuvenating the hope of a swampland consistent inflated multiverse with tachyonic inflation in the high energy RS-II Braneworld
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• Swampland Constraints on No-Boundary Quantum Cosmology
• Holographic warm inflation
• Refined Swampland conjecture in deformed Starobinsky gravity
• Breathing Comoving Hubble: Initial Condition and Eternity in view of the trans-Planckian Censorship Conjecture
• Hidden Sectors in String Theory: Kinetic Mixings, Fifth Forces and Quintessence
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• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Implications of single field inflation in general cosmological scenarios on the nature of dark energy given the swampland conjectures