1.5k citations · 3.3k across the 33 of their papers we have counts for
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astro-ph.CO2015★ 69 cited
Implications of Planck2015 for inflationary, ekpyrotic and anamorphic bouncing cosmologies
Anna Ijjas, Paul J. Steinhardt
The results from Planck2015, when combined with earlier observations from WMAP, ACT, SPT and other experiments, were the first observations to disfavor the "classic" inflationary p…
astro-ph.CO2015★ 34 cited
The anamorphic universe
Anna Ijjas, Paul J. Steinhardt
We introduce "anamorphic" cosmology, an approach for explaining the smoothness and flatness of the universe on large scales and the generation of a nearly scale-invariant spectrum…
astro-ph.CO2015★ 46 cited
Scale-invariant perturbations in ekpyrotic cosmologies without fine-tuning of initial conditions
Aaron M. Levy, Anna Ijjas, Paul J. Steinhardt
Ekpyrotic bouncing cosmologies have been proposed as alternatives to inflation. In these scenarios, the universe is smoothed and flattened during a period of slow contraction prece…