English

The Swampland Conjectures and Slow-Roll Thawing Quintessence

High Energy Physics - Theory 2020-09-23 v2 Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

Abstract

We examine the Swampland conjectures in the context of generic slow-roll thawing quintessence models. Defining λV(ϕi)/V(ϕi)\lambda \equiv |V^{\prime}(\phi_i)/V(\phi_i)| and K14V(ϕi)/3V(ϕi)K \equiv \sqrt{1 - 4V^{\prime \prime}(\phi_i)/3V(\phi_i)}, where ϕi\phi_i is the initial value of ϕ\phi, 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 λ\lambda needed to achieve these results.

Keywords

Cite

@article{arxiv.2008.05465,
  title  = {The Swampland Conjectures and Slow-Roll Thawing Quintessence},
  author = {S. David Storm and Robert J. Scherrer},
  journal= {arXiv preprint arXiv:2008.05465},
  year   = {2020}
}

Comments

8 pages, 5 figures, references added