Gdel宇宙模型在理想流体条件下的一个近似解

Approximate Solution of Gdel Cosmological Model in the Ideal Matter Source Conditions

在引力源为理想流体条件下,通过对Gdel宇宙基本性质的分析求解了Einstein场方程,给出了一个Gdel宇宙时空度规的近似解。并且对此解进行了分析。结果表明,在参量f(x)的两种不同情况下,Gdel宇宙将分别表现出静态与膨胀的特征。对于膨胀宇宙,H的取值主要依赖于λ、k以及σ等模型参数。

Approximate solution of the cosmological model of Godel type is obtained for the ideal matter source by solving Einstein field equation. The solutions show that, in the case of two different f（x） parameters, Godel cosmological model has characteristics of static and expansion. For the expanding cosmological model, the value of H depends on parameters of λ , k and σ .