556 citations · 3.1k across the 46 of their papers we have counts for
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A CMB Millikan Experiment with Cosmic Axiverse Strings
Prateek Agrawal, Anson Hook, Junwu Huang
We study axion strings of hyperlight axions coupled to photons. Hyperlight axions -- axions lighter than Hubble at recombination -- are a generic prediction of the string axiverse.…
Tension, Swampland Conjectures and the Epoch of Fading Dark Matter
Prateek Agrawal, Georges Obied, Cumrun Vafa
Motivated by the swampland dS conjecture, we consider a rolling scalar field as the source of dark energy. Furthermore, the swampland distance conjecture suggests that the rolling…
Rock 'n' Roll Solutions to the Hubble Tension
Prateek Agrawal, Francis-Yan Cyr-Racine, David Pinner +1
Local measurements of the Hubble parameter are increasingly in tension with the value inferred from a CDM fit to the cosmic microwave background (CMB) data. In this paper, we co…
Dark Catalysis
Prateek Agrawal, Francis-Yan Cyr-Racine, Lisa Randall +1
Recently it was shown that dark matter with mass of order the weak scale can be charged under a new long-range force, decoupled from the Standard Model, with only weak constraints…