581 citations · 5.9k across the 106 of their papers we have counts for
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Aetherizing Lambda: Barotropic Fluids as Dark Energy
Eric V. Linder, Robert J. Scherrer
We examine the class of barotropic fluid models of dark energy, in which the pressure is an explicit function of the density, p = f(ρ). Through general physical considerations we c…
Phantom Dark Energy Models with a Nearly Flat Potential
Robert J. Scherrer, A. A. Sen
We examine phantom dark energy models produced by a field with a negative kinetic term and a potential that satisfies the slow roll conditions: [(1/V)(dV/dphi)]^2 << 1 and (1/V)(d^…
Hilltop Quintessence
Sourish Dutta, Robert J. Scherrer
We examine hilltop quintessence models, in which the scalar field is rolling near a local maximum in the potential, and w is close to -1. We first derive a general equation for the…
Toward a Minimum Branching Fraction for Dark Matter Annihilation into Electromagnetic Final States
James B. Dent, Robert J. Scherrer, Thomas J. Weiler
Observational limits on the high-energy neutrino background have been used to place general constraints on dark matter that annihilates only into standard model particles. Dark mat…
Evolution of Oscillating Scalar Fields as Dark Energy
Sourish Dutta, Robert J. Scherrer
Oscillating scalar fields, with an oscillation frequency much greater than the expansion rate, have been proposed as models for dark energy. We examine these models, with particula…