1.5k citations · 3.3k across the 33 of their papers we have counts for
Showing 2014Show all
2 papers · 1 filter
astro-ph.CO2014★ 57 cited
A general mechanism for producing scale-invariant perturbations and small non-Gaussianity in ekpyrotic models
Anna Ijjas, Jean-Luc Lehners, Paul J. Steinhardt
We explore a new type of entropic mechanism for generating density perturbations in a contracting phase in which there are two scalar fields, but only one has a steep negative pote…
astro-ph.CO2014★ 154 cited
Inflationary schism after Planck2013
Anna Ijjas, Paul J. Steinhardt, Abraham Loeb
Classic inflation, the theory described in textbooks, is based on the idea that, beginning from typical initial conditions and assuming a simple inflaton potential with a minimum o…