837 citations · 8.3k across the 83 of their papers we have counts for
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Isocurvature constraints on gravitationally produced superheavy dark matter
Daniel J. H. Chung, Edward W. Kolb, Antonio Riotto +1
We show that the isocurvature perturbations imply that the gravitationally produced superheavy dark matter must have masses larger than few times the Hubble expansion rate at the e…
Curvature Perturbations from Broken Symmetries
Edward W. Kolb, Antonio Riotto, Alberto Vallinotto
We present a new general mechanism to generate curvature perturbations after the end of the slow-roll phase of inflation. Our model is based on the simple assumption that the poten…
Cosmological influence of super-Hubble perturbations
Edward W. Kolb, Sabino Matarrese, Alessio Notari +1
The existence of cosmological perturbations of wavelength larger than the Hubble radius is a generic prediction of the inflationary paradigm. We provide the derivation beyond pertu…
Effect of inhomogeneities on the expansion rate of the Universe
Edward W. Kolb, Sabino Matarrese, Alessio Notari +1
While the expansion rate of a homogeneous isotropic Universe is simply proportional to the square-root of the energy density, the expansion rate of an inhomogeneous Universe also d…