The Swampland Conjectures and Slow-Roll Thawing Quintessence

preprint2020arXivOpen access

Abstract

We examine the Swampland conjectures in the context of generic slow-roll thawing quintessence models. Defining λ≡∣V′(ϕi)/V(ϕi)∣λ\equiv |V^{\prime}(ϕ_i)/V(ϕ_i)| and K≡1−4V′′(ϕi)/3V(ϕi)K \equiv \sqrt{1 - 4V^{\prime \prime}(ϕ_i)/3V(ϕ_i)}, where ϕiϕ_i is the initial value of ϕϕ, we find regions of parameter space consistent with both observational data and with the refined de Sitter conjecture, and we show that all such models satisfy the distance conjecture. We quantify the degree of fine-tuning on λλ needed to achieve these results.

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