44 citations · 72 across the 3 of their papers we have counts for
5 papers
Cosmological Surprises from Braneworld models of Dark Energy
Varun Sahni
Properties of Braneworld models of dark energy are reviewed. Braneworld models admit the following interesting possibilities: (i) The effective equation of state can be w < -1 as w…
Exploring dark energy using the Statefinder
Varun Sahni
Observations of high redshift supernovae indicate that the universe is accelerating. The hypothesis of `Dark energy' (cosmological constant, scalar field tracker potentials, branew…
Supernova Constraints on Braneworld Dark Energy
Ujjaini Alam, Varun Sahni
Braneworld models of dark energy are examined in the light of observations of high redshift type Ia supernovae. Braneworld models admit several novel and even exotic possibilities…
Analysis of Large Scale Structure using Percolation, Genus and Shape Statistics
V. Sahni
We probe gravitational clustering in N-body simulations using geometrical descriptors sensitive to `connectedness': the genus curve, percolation and shape statistics. We find that…
Post-COBE predictions for Inflationary Gravity Wave and Density Perturbation spectra
Varun Sahni, Tarun Souradeep
We assess the relative contribution to the COBE - measured microwave anisotropy arising both from relic gravity waves as well as primordial density perturbations originating during…