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Cosmological Perturbations at Second Order and Recombination Perturbed
Leonardo Senatore, Svetlin Tassev, Matias Zaldarriaga
We derive the full set of second-order equations governing the evolution of cosmological perturbations, including the effects of the first-order electron number density perturbatio…
The Volume of the Universe after Inflation and de Sitter Entropy
Sergei Dubovsky, Leonardo Senatore, Giovanni Villadoro
We calculate the probability distribution for the volume of the Universe after slow-roll inflation both in the eternal and in the non-eternal regime. Far from the eternal regime th…
Non-Gaussianities from Perturbing Recombination
Leonardo Senatore, Svetlin Tassev, Matias Zaldarriaga
We approximately compute the bispectrum induced on the CMB temperature by fluctuations in the standard recombination epoch. Of all the second order sources that can induce non-Gaus…
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…
The Phase Transition to Eternal Inflation
Paolo Creminelli, Sergei Dubovsky, Alberto Nicolis +2
For slow-roll inflation we study the phase transition to the eternal regime. Starting from a finite inflationary volume, we consider the volume of the universe at reheating as orde…
(No) Eternal Inflation and Precision Higgs Physics
Nima Arkani-Hamed, Sergei Dubovsky, Leonardo Senatore +1
Even if nothing but a light Higgs is observed at the LHC, suggesting that the Standard Model is unmodified up to scales far above the weak scale, Higgs physics can yield surprises…