Classification of the FRW universe with a cosmological constant and a perfect fluid of the equation of state p = wρ

被引:0
|
作者
Te Ha
Yongqing Huang
Qianyu Ma
Kristen D. Pechan
Timothy J. Renner
Zhenbin Wu
G. A. Benesh
Anzhong Wang
机构
[1] Baylor University,Physics Department
来源
General Relativity and Gravitation | 2012年 / 44卷
关键词
Cosmological models; Classifications; Dark energy; Dark matter;
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学科分类号
摘要
We systematically study the evolution of the Friedmann–Robertson–Walker (FRW) universe coupled with a cosmological constant Λ and a perfect fluid that has the equation of state p = wρ, where p and ρ denote, respectively, the pressure and energy density of the fluid, and w is an arbitrary real constant. Depending on the specific values of w, Λ, and the curvature k of 3-dimensional space, we separate all of the solutions into various cases. In each case the main properties of the evolution are given in detail, including the periods of deceleration and/or acceleration, and the existence of big bang, big crunch, and big rip singularities. In some cases, errors in classification and interpretation appearing in standard textbooks have been corrected.
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页码:1433 / 1458
页数:25
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