95 citations · 405 across the 26 of their papers we have counts for
3 papers · 1 filter
The Evolution of Non-adiabatic Pressure Perturbations during Multi-field Inflation
Ian Huston, Adam J. Christopherson
Non-adiabatic pressure perturbations naturally occur in models of inflation consisting of more than one scalar field. The amount of non-adiabatic pressure present at the end of inf…
Vorticity from isocurvature in the early universe
Adam J. Christopherson, Karim A. Malik
Vorticity is ubiquitous in nature however, to date, studies of vorticity in cosmology and the early universe have been quite rare. In this paper, based on a talk in session CM1 of…
Modelling non-dust fluids in cosmology
Adam J. Christopherson, J. C. Hidalgo, Karim A. Malik
Currently, most of the numerical simulations of structure formation use Newtonian gravity. When modelling pressureless dark matter, or `dust', this approach gives the correct resul…