这糊线性数量回答的研究幽灵(LSF ) ,幽灵 non-linear Born-Infeld (NLBI ) 数量与表格 V (ϕ )= m 2ϕ 2 的方形的潜力回答。在幽灵 LSF 和幽灵 NLBI 数量的(t) 建模的规模因素的状态方程参数 ω (z) ,和进化被探索。宇宙 H 0 t 和转变红移动 Z 的年龄被获得。157-SN-Ia 的金数据集被用来由数字计算抑制二个模型的参数。幽灵 LSF 比幽灵 NLBI 类型数量领域为大 m 当模特儿稍微好。尽管到更好的地的更慢的滚动的更小的 m corresponding 适合观察数据,幽灵 NLBI 分级的地和幽灵 LSF 之间的差别不在这种情况中是不同的。
This paper studies phantom linear scalar field (LSF) and phantom non-linear Born-Infeld (NLBI) scalar field with square potential of the form V(Ф) =1/2m^2Ф^2. The equation of state parameter w(z), and evolution of scale factor a(t) in both phantom LSF and phantom NLBI scalar model are explored. The age of universe Hot and the transition redshift Z are obtained. The Gold data set of 157-SN-Ia is used to constrain parameters of the two models by numerical calculation. The phantom LSF is slightly better than the phantom NLBI type scalar field model for a large m. Although a smaller m corresponding to a slower rolling of field Ф better fits the observation data, the difference between phantom NLBI scalar field and phantom LSF is not distinct in this case.