The Einstein-Vlasov system with a scalar field

被引：0
|
作者：
Lee, H [1 ]
机构：
[1] Max Planck Inst Gravitat Phys, D-14476 Golm, Germany
来源：
General Relativity and Gravitational Physics | 2005年 / 751卷
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the Einstein-Vlasov system coupled to a nonlinear scalar field with a nonnegative potential in locally spatially homogeneous spacetime, as an expanding cosmological model. It is shown that solutions of this system exist globally in time. When the potential of the scalar field is of an exponential form, the cosmological model corresponds to accelerated expansion. The system with an exponential potential shows the causal geodesic completeness of the spacetime towards the future. The asymptotic behavior of solutions of this system in the future time is analysed in various aspects, which shows power-law expansion.
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页码：217 / 220
页数：4
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