978 citations · 8.1k across the 84 of their papers we have counts for
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CMBPol Mission Concept Study: Probing Inflation with CMB Polarization
Daniel Baumann, Mark G. Jackson, Peter Adshead +56
We summarize the utility of precise cosmic microwave background (CMB) polarization measurements as probes of the physics of inflation. We focus on the prospects for using CMB measu…
Fine-Tuning in DBI Inflationary Mechanism
Xingang Chen
We show a model-independent fine-tuning issue in the DBI inflationary mechanism. DBI inflation requires a warp factor h small enough to sufficiently slow down the inflaton. On the…
Generation and Characterization of Large Non-Gaussianities in Single Field Inflation
Xingang Chen, Richard Easther, Eugene A. Lim
Inflation driven by a single, minimally coupled, slowly rolling field generically yields a negligible primordial non-Gaussianity. We discuss two distinct mechanisms by which a non-…
Duality Cascade in Brane Inflation
Rachel Bean, Xingang Chen, Girma Hailu +2
We show that brane inflation is very sensitive to tiny sharp features in extra dimensions, including those in the potential and in the warp factor. This can show up as observationa…