Realistic equations of state for the primeval universe

被引：0
|
作者：
R. Aldrovandi
R. R. Cuzinatto
L. G. Medeiros
机构：
[1] Universidade Estadual Paulista,Instituto de Física Teórica
[2] University of Alberta,Theoretical Physics Institute
[3] Centro Brasileiro de Pesquisas Físicas,undefined
来源：
The European Physical Journal C | 2008年 / 58卷
关键词：
98.80.-k; 05.30.-d; 51.30.+i;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Equations of state for the early universe including realistic interactions between constituents are formulated. Under certain hypotheses, these equations are able to generate an inflationary regime prior to the period of the nucleosynthesis. The resulting accelerated expansion is intense enough to solve the flatness and horizon problems. In the cases of a curvature parameter κ equal to 0 or +1, the model is able to avoid the initial singularity and offers a natural explanation for why the universe is in expansion. All the results are valid only for a matter–antimatter symmetric universe.
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页码：483 / 497
页数：14
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