110 citations · 194 across the 3 of their papers we have counts for
3 papers
astro-ph2006★ 59 cited
Phantom Dark Energy Models with Negative Kinetic Term
Jens Kujat, Robert J. Scherrer, A. A. Sen
We examine phantom dark energy models derived from a scalar field with a negative kinetic term for which V(phi) approaches infinity asymptotically. All such models can be divided i…
astro-ph2001★ 110 cited
Prospects for Determining the Equation of State of the Dark Energy: What can be Learned from Multiple Observables?
Jens Kujat, Angela M. Linn, Robert J. Scherrer +1
The dark energy that appears to produce the accelerating expansion of the universe can be characterized by an equation of state p=wρwith w<-1/3. A number of observational tests hav…
astro-ph1999★ 25 cited
The Effect of Time Variation in the Higgs Vacuum Expectation Value on the Cosmic Microwave Background
Jens Kujat, Robert J. Scherrer
A time variation in the Higgs vacuum expectation value alters the electron mass and thereby changes the ionization history of the universe. This change produces a measurable imprin…