556 citations · 1.7k across the 16 of their papers we have counts for
4 papers · 1 filter
Dark Energy and the Refined de Sitter Conjecture
Prateek Agrawal, Georges Obied
We revisit the phenomenology of quintessence models in light of the recently refined version of the de Sitter Swampland conjecture, which includes the possibility of unstable de Si…
On the Cosmological Implications of the String Swampland
Prateek Agrawal, Georges Obied, Paul J. Steinhardt +1
We study constraints imposed by two proposed string Swampland criteria on cosmology. These criteria involve an upper bound on the range traversed by scalar fields as well as a lowe…
De Sitter Space and the Swampland
Georges Obied, Hirosi Ooguri, Lev Spodyneiko +1
It has been notoriously difficult to construct a meta-stable de Sitter (dS) vacuum in string theory in a controlled approximation. This suggests the possibility that meta-stable dS…
Inflationary vs. Reionization Features from Planck 2015 Data
Georges Obied, Cora Dvorkin, Chen Heinrich +2
Features during inflation and reionization leave corresponding features in the temperature and polarization power spectra that could potentially explain anomalies in the Planck 201…