78 citations · 335 across the 12 of their papers we have counts for
6 papers · 1 filter
The Early Dark Sector, the Hubble Tension, and the Swampland
Evan McDonough, Meng-Xiang Lin, J. Colin Hill +2
We consider the interplay of the Early Dark Energy (EDE) model, the Swampland Distance Conjecture (SDC), and cosmological parameter tensions. EDE is a proposed resolution of the Hu…
Cosmic Filament Spin from Dark Matter Vortices
Stephon Alexander, Christian Capanelli, Elisa G. M. Ferreira +1
The recent observational evidence for cosmic filament spin on megaparsec scales (Wang et al, Nature Astronomy 5, 839-845 (2021)) demands an explanation in the physics of dark matte…
Amplification of Primordial Perturbations from the Rise or Fall of the Inflaton
Keisuke Inomata, Evan McDonough, Wayne Hu
The next generation of cosmic microwave background, gravitational wave, and large scale structure, experiments will provide an unprecedented opportunity to probe the primordial pow…
Primordial Black Holes Arise When The Inflaton Falls
Keisuke Inomata, Evan McDonough, Wayne Hu
Primordial Black Holes (PBHs) have entered the forefront of theoretical cosmology, due their potential role in phenomena ranging from gravitational waves, to dark matter, to galaxy…
The Gravitino Swampland Conjecture
Edward W. Kolb, Andrew J. Long, Evan McDonough
We extend the swampland from effective field theories (EFTs) inconsistent with quantum gravity to EFTs inconsistent with quantum supergravity. This enlarges the swampland to includ…
Catastrophic Production of Slow Gravitinos
Edward W. Kolb, Andrew J. Long, Evan McDonough
We study gravitational particle production of the massive spin- Rarita-Schwinger field, and its close relative, the gravitino, in FRW cosmological spacetimes. For masses light…