394 citations · 4.3k across the 104 of their papers we have counts for
17 papers · 1 filter
Sound Speed and Viscosity of Semi-Relativistic Relic Neutrinos
Lawrence M. Krauss, Andrew J. Long
Generalized fluid equations, using sound speed and viscosity as effective parameters, provide a convenient phenomenological formalism for testing th…
Large Slow Roll Parameters in Single Field Inflation
Jessica L. Cook, Lawrence M. Krauss
We initially consider two simple situations where inflationary slow roll parameters are large and modes no longer freeze out shortly after exiting the horizon, treating both cases…
Reheating predictions in single field inflation
Jessica L. Cook, Emanuela Dimastrogiovanni, Damien A. Easson +1
Reheating is a transition era after the end of inflation, during which the inflaton is converted into the particles that populate the Universe at later times. No direct cosmologica…
Is Higgs Inflation Dead?
Jessica L. Cook, Lawrence M. Krauss, Andrew J. Long +1
We consider the status of Higgs Inflation in light of the recently announced detection of B-modes in the polarization of the cosmic microwave background radiation by the BICEP2 col…
Killing the Straw Man: Does BICEP Prove Inflation at the GUT Scale?
James B. Dent, Lawrence M. Krauss, Harsh Mathur
The surprisingly large value of , the ratio of power in tensor to scalar density perturbations in the CMB reported by the BICEP2 Collaboration, if confirmed, provides strong evi…
Damping of Primordial Gravitational Waves from Generalized Sources
James B. Dent, Lawrence M. Krauss, Subir Sabharwal +1
It has been shown that a cosmological background with an anisotropic stress tensor, appropriate for a free streaming thermal neutrino background, can damp primordial gravitational…