137 citations · 1.3k across the 30 of their papers we have counts for
30 papers
Inflation in a Gaussian Random Landscape
Lerh Feng Low, Richard Easther, Shaun Hotchkiss
Random, multifield functions can set generic expectations for landscape-style cosmologies. We consider the inflationary implications of a landscape defined by a Gaussian random fun…
The Distribution of Vacua in Random Landscape Potentials
Lerh Feng Low, Shaun Hotchkiss, Richard Easther
Landscape cosmology posits the existence of a convoluted, multidimensional, scalar potential -- the "landscape" -- with vast numbers of metastable minima. Random matrices and rando…
Lighting the Dark: The Evolution of the Post-Inflationary Universe
Nathan Musoke, Shaun Hotchkiss, Richard Easther
In simple inflationary cosmological scenarios the near-exponential growth can be followed by a long period in which the Universe is dominated by the oscillating inflaton condensate…
WIMPs and stellar-mass primordial black holes are incompatible
Julian Adamek, Christian T. Byrnes, Mateja Gosenca +1
We recently showed that postulated ultracompact minihalos with a steep density profile do not form in realistic simulations with enhanced initial perturbations. In this paper we as…
PyUltraLight: A Pseudo-Spectral Solver for Ultralight Dark Matter Dynamics
Faber Edwards, Emily Kendall, Shaun Hotchkiss +1
PyUltraLight simulates the dynamics of ultralight dark matter in a non-expanding background. PyUltraLight can describe the evolution of several interacting ultralight dark matter h…
3D simulations with boosted primordial power spectra and ultracompact minihalos
Mateja Gosenca, Julian Adamek, Christian T. Byrnes +1
We perform three-dimensional simulations of structure formation in the early Universe, when boosting the primordial power spectrum on approximately kpc scales. We demonstrate that…