Anjan A. Sen

Generalized Chaplygin gas, accelerated expansion and dark energy matter unification

We consider the scenario emerging from the dynamics of a generalized

WMAP Constraints on the Generalized Chaplygin Gas Model

d

Generalized Chaplygin gas and cosmic microwave background radiation constraints

-brane in a

Revival of the unified dark energy-dark matter model?

(d+1, 1)

Latest supernova data in the framework of the generalized Chaplygin gas model

spacetime. The equation of state describing this system is given in terms of the energy density,

Thawing quintessence with a nearly flat potential

\rho

Late time acceleration in Brans-Dicke cosmology

, and pressure,

Tachyonic inflation in the braneworld scenario

p

Generalizing the generalized Chaplygin gas

, by the relationship

Supernovae constraints on models of dark energy reexamined

p = - A/\rho^{\alpha}