标题： 具有多方状态方程的暗能量标量场模型：不同数据集下的性质及观测限制 显示英文标题

标题： Scalar field models of dark energy with barotropic equation of state: properties and observational constraints from different datasets

摘要： 讨论了利用不同的可用数据集约束标量场暗能量的参数及其物态方程的可能性。研究发现，大多数数据对暗能量物态方程参数的初始值约束较弱。我们确定了来自包含SDSS完整编录中的超新星及MLCS2k2光变曲线拟合的联合数据集对该参数的限制。此外，我们还探讨了利用未来CMB各向异性数据区分不同具有物态方程的暗能量模型的可能性。 显示英文摘要

摘要： The possibility of constraining the parameters of scalar field dark energy with barotropic equation of state using different available datasets is discussed. It has been found that the initial value of dark energy equation of state parameter is constrained very weakly by most of the data. We have determined the constraints on this parameter, which come from the combined dataset including supernovae from the full SDSS compilation with the MLCS2k2 fitting of light curves. We discuss also the possibility of distinguishing between different dark energy models with barotropic equation of state using the future data on CMB anisotropies.