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9 papers · 1 filter
Two-pion interferometry for granular sources
Wei-Ning Zhang
A review on the two-pion Hanbury-Brown-Twiss (HBT) interferometry in the granular source model of quark-gluon plasma droplets is presented. The characteristic quantities of the gra…
Constraints on the generalized Chaplygin gas model including gamma-ray bursts via a Markov Chain Monte Carlo approach
Nan Liang, Lixin Xu, Zong-Hong Zhu
We investigate observational constraints on the generalized Chaplygin gas (GCG) model including the gamma-ray bursts (GRBs) at high redshift obtained directly from the Union2 type…
Constraints on modified Chaplygin gas from recent observations and a comparison of its status with other models
Jianbo Lu, Lixin Xu, Jiechao Li +3
In this Letter, a modified Chaplygin gas (MCG) model of unifying dark energy and dark matter with the exotic equation of state is constrained…
Cosmological constraints on generalized Chaplygin gas model: Markov Chain Monte Carlo approach
Lixin Xu, Jianbo Lu
We use the Markov Chain Monte Carlo method to investigate a global constraints on the generalized Chaplygin gas (GCG) model as the unification of dark matter and dark energy from t…
The Integrated Sachs-Wolfe Effect in Time Varying Vacuum Model
Yuting Wang, Yuan-Xing Gui, Lixin Xu +1
The integrated Sachs-Wolfe (ISW) effect is an important implication for dark energy. In this paper, we have calculated the power spectrum of the ISW effect in the time varying vacu…
Born-Oppenheimer approximation for open quantum systems within the quantum trajectory approach
X. L. Huang, S. L. Wu, L. C. Wang +1
Based on the quantum trajectory approach, we extend the Born-Oppenheimer (BO) approximation from closed quantum system to open quantum system, where the open quantum system is desc…