TY - JOUR
T1 - Testing the Swampland
T2 - H0 tension
AU - Ó Colgáin, Eoin
AU - Yavartanoo, Hossein
N1 - Publisher Copyright:
© 2019
PY - 2019/10/10
Y1 - 2019/10/10
N2 - The de Sitter Swampland conjecture compels us to consider dark energy models where λ(ϕ)≡|∇ϕV|/V is bounded below by a positive constant. Moreover, it has been argued for Quintessence models that the constant λ scenario is the least constrained. Here we demonstrate that increasing λ only exacerbates existing tension in the Hubble constant H0. The identification of dark energy models that both evade observational bounds and alleviate H0 tension constitutes a robust test for the Swampland program.
AB - The de Sitter Swampland conjecture compels us to consider dark energy models where λ(ϕ)≡|∇ϕV|/V is bounded below by a positive constant. Moreover, it has been argued for Quintessence models that the constant λ scenario is the least constrained. Here we demonstrate that increasing λ only exacerbates existing tension in the Hubble constant H0. The identification of dark energy models that both evade observational bounds and alleviate H0 tension constitutes a robust test for the Swampland program.
UR - https://www.scopus.com/pages/publications/85071677441
U2 - 10.1016/j.physletb.2019.134907
DO - 10.1016/j.physletb.2019.134907
M3 - Article
AN - SCOPUS:85071677441
SN - 0370-2693
VL - 797
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
M1 - 134907
ER -