216 citations · 1.2k across the 19 of their papers we have counts for
10 papers · 1 filter
Non-existence of Extended Holographic Dark Energy with Hubble Horizon
Yungui Gong, Jie Liu
The extended holographic dark energy model with the Hubble horizon as the infrared cutoff avoids the problem of the circular reasoning of the holographic dark energy model. We show…
The generalized second law of thermodynamics in the accelerating universe
Jia Zhou, Bin Wang, Yungui Gong +1
We show that in the accelerating universe the generalized second law of thermodynamics holds only in the case where the enveloping surface is the apparent horizon, but not in the c…
Thermodynamical properties of dark energy
Yungui Gong, Bin Wang, Anzhong Wang
We have investigated the thermodynamical properties of dark energy. Assuming that the dark energy temperature and considering that the volume of the Universe envelop…
Acceleration from M theory and Fine-tuning
Yungui Gong, Anzhong Wang
The compactification of M theory with time dependent hyperbolic internal space gives an effective scalar field with exponential potential which provides a transient acceleration in…
Thermodynamics of an accelerated expanding universe
Bin Wang, Yungui Gong, Elcio Abdalla
We investigate the laws of thermodynamics in an accelerating universe driven by dark energy with a time-dependent equation of state. In the case we consider that the physically rel…
Constraints on a new alternative model to dark energy
Yungui Gong, Xi-Ming Chen
The recent type Ia supernova data suggest that the universe is accelerating now and decelerated in recent past. This may provide the evidence that the standard Friedmann equation n…