714 citations · 810 across the 6 of their papers we have counts for
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astro-ph2008★ 7 cited
Cosmic Acceleration and Extra Dimensions
Varun Sahni, Yuri Shtanov
Brane cosmology presents many interesting possibilities including: phantom acceleration (w<-1), self-acceleration, unification of dark energy with inflation, transient acceleration…
astro-ph2008★ 714 cited
Two new diagnostics of dark energy
Varun Sahni, Arman Shafieloo, Alexei A. Starobinsky
We introduce two new diagnostics of dark energy (DE). The first, Om, is a combination of the Hubble parameter and the cosmological redshift and provides a "null test" of dark energ…