540 citations · 4.5k across the 74 of their papers we have counts for
4 papers · 2 filters
Reconstruction of Hessence Dark Energy and the Latest Type Ia Supernovae Gold Dataset
Hao Wei, Ningning Tang, Shuang Nan Zhang
Recently, many efforts have been made to build dark energy models whose equation-of-state parameter can cross the so-called phantom divide . One of them is the so-called…
Observational Data and Cosmological Models
Hao Wei, Shuang Nan Zhang
In this work, we confront ten cosmological models with observational data. The possible interaction between dark energy and dust matter is allowed in some of these models. A…
Cheng-Weyl Vector Field and its Cosmological Application
Hao Wei, Rong-Gen Cai
Weyl's idea on scale invariance was resurrected by Cheng in 1988. The requirement of local scale invariance leads to a completely new vector field, which we call the ``Cheng-Weyl v…
Interacting Vector-like Dark Energy, the First and Second Cosmological Coincidence Problems
Hao Wei, Rong-Gen Cai
One of the puzzles of the dark energy problem is the (first) cosmological coincidence problem, namely, {\em why does our universe begin the accelerated expansion recently? why are…