341 citations · 4.8k across the 57 of their papers we have counts for
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astro-ph2003★ 28 cited
Constraining Cut-off Physics in the Cosmic Microwave Background
Takemi Okamoto, Eugene A. Lim
We investigate the ability to constrain oscillatory features in the primordial power spectrum using current and future cosmic microwave background observations. In particular, we s…
astro-ph2003★ 47 cited
Scale Invariance without Inflation?
C. Armendariz-Picon, Eugene A. Lim
We propose a new alternative mechanism to seed a scale invariant spectrum of primordial density perturbations that does not rely on inflation. In our scenario, a perfect fluid domi…
hep-th2003★ 58 cited
Vacuum Choices and the Predictions of Inflation
C. Armendariz-Picon, Eugene A. Lim
In the presence of a short-distance cutoff, the choice of a vacuum state in an inflating, non-de Sitter universe is unavoidably ambiguous. The ambiguity is related to the time at w…