540 citations · 4k across the 92 of their papers we have counts for
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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^…
Reconstructing the interaction rate in holographic models of dark energy
Anjan A. Sen, Diego Pavon
We reconstruct the interaction rate of the holographic dark energy model recently proposed by Zimdahl and Pavón \cite{wd} in the redshift interval with observational…
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…
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…
Generalizing the generalized Chaplygin gas
A. A. Sen, Robert J. Scherrer
The generalized Chaplygin gas is characterized by the equation of state p = - A/rho^alpha, with alpha > -1 and w > -1. We generalize this model to allow for the cases where alpha <…
WMAP Bounds on Braneworld Tachyonic Inflation
Maria C. Bento, Nuno M. C. Santos, Anjan A. Sen
We analyse the implications of the Wilkinson Microwave Anisotropy Probe (WMAP) results for a braneworld tachyonic model of inflation. We find that WMAP bounds on allow us to…