Asymptotic Observables and the Swampland

Abstract

We show that constraints on scalar field potentials and towers of light massive states in asymptotic limits of scalar field space (as posited by the de Sitter Conjecture and the Swampland Distance Conjecture, respectively) are correlated with the prospects for defining asymptotic observables in expanding FRW cosmologies. The observations of a "census taker" in an eternally inflating cosmology are further related to the question of whether certain domain walls satisfy a version of the Weak Gravity Conjecture. This suggests that answers to fundamental questions about asymptotic observables in cosmology could help shed light on the Swampland program, and vice versa.

v2: 13 pages, 5 figures, minor changes and references added

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Cited by in corpus (7)

• Sharpening the Distance Conjecture in Diverse Dimensions
• Finiteness and the Swampland
• Asymptotic Accelerated Expansion in String Theory and the Swampland
• Asymptotic Scalar Field Cosmology in String Theory
• (Quasi-) de Sitter solutions across dimensions and the TCC bound
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