1.5k citations · 3.3k across the 33 of their papers we have counts for
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Sourcing curvature modes with entropy perturbations in non-singular bouncing cosmologies
Anna Ijjas, Roman Kolevatov
The observed temperature fluctuations in the cosmic microwave background can be traced back to primordial curvature modes that are sourced by adiabatic and/or entropic matter pertu…
Robustness of slow contraction to cosmic initial conditions
Anna Ijjas, William G. Cook, Frans Pretorius +2
We present numerical relativity simulations of cosmological scenarios in which the universe is smoothed and flattened by undergoing a phase of slow contraction and test their sensi…
Supersmoothing through Slow Contraction
William G. Cook, Iryna A. Glushchenko, Anna Ijjas +2
Performing a fully non-perturbative analysis using the tools of numerical general relativity, we demonstrate that a period of slow contraction is a `supersmoothing' cosmological ph…