220 citations · 367 across the 3 of their papers we have counts for
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astro-ph2008★ 79 cited
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^…
astro-ph2007★ 220 cited
Thawing quintessence with a nearly flat potential
Robert J. Scherrer, A. A. Sen
The thawing quintessence model with a nearly flat potential provides a natural mechanism to produce an equation of state parameter, w, close to -1 today. We examine the behavior of…
astro-ph2007★ 68 cited
The Weak Energy Condition and the Expansion History of the Universe
A. A. Sen, Robert J. Scherrer
We examine flat models containing a dark matter component and an arbitrary dark energy component, subject only to the constraint that the dark energy satisfies the weak energy cond…