266 citations · 723 across the 16 of their papers we have counts for
4 papers · 1 filter
Pseudo-rip: Cosmological models intermediate between the cosmological constant and the little rip
Paul H. Frampton, Kevin J. Ludwick, Robert J. Scherrer
If we assume that the cosmic energy density will remain constant or strictly increase in the future, then the possible fates for the universe can be divided into four categories ba…
Models for Little Rip Dark Energy
Paul H. Frampton, Kevin J. Ludwick, Shin'ichi Nojiri +2
We examine in more detail specific models which yield a little rip cosmology, i.e., a universe in which the dark energy density increases without bound but the universe never reach…
The Little Rip
Paul H. Frampton, Kevin J. Ludwick, Robert J. Scherrer
We examine models in which the dark energy density increases with time (so that the equation-of-state parameter w satisfies w < -1), but w approaches -1 asymptotically, such that t…
Seeking Evolution of Dark Energy
Paul H. Frampton, Kevin J. Ludwick
We study how observationally to distinguish between a cosmological constant (CC) and an evolving dark energy with equation of state . We focus on the value of redshift Z* at…