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155 papers · 1 filter
Testing cosmic opacity from SNe Ia and Hubble parameter through three cosmological-model-independent methods
Kai Liao, Zhengxiang Li, Jing Ming +1
We use the newly published 28 observational Hubble parameter data () and current largest SNe Ia samples (Union2.1) to test whether the universe is transparent. Three cosmolog…
Seven-Year Multi-Color Optical Monitoring of BL Lacertae Object S5 0716+714
Yan Dai, Jianghua Wu, Zong-Hong Zhu +4
We have monitored the BL Lac object S5 0716+714 in five intermediate optical wavebands from 2004 September to 2011 April. Here we present the data that include 8661 measurements wh…
A unification of RDE model and XCDM model
Kai Liao, Zong-Hong Zhu
In this Letter, we propose a new generalized Ricci dark energy (NGR) model to unify Ricci dark energy (RDE) and XCDM. Our model can distinguish between RDE and XCDM by introducing…
Dynamical spin response of electron doped Mott insulators on a triangular lattice
Bin Liu, Ying Liang
The spin dynamics of electron doped Mott insulators on a triangular lattice is studied based on the model. It is found that the particularly universal behaviors of integrated…
Superconductivity and magnetic fluctuations in electron-doped cobaltate superconductors
Ying Liang, Bin Liu
We study the interplay between superconductivity and antiferromagnetic spin fluctuations in electron-doped cobaltate NaCoOHO based on the kinetic energy dr…
Phase transitions in the frustrated Ising model on the square lattice
Songbo Jin, Arnab Sen, Wenan Guo +1
We consider the thermal phase transition from a paramagnetic to stripe-antiferromagnetic phase in the frustrated two-dimensional square-lattice Ising model with competing interacti…