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arXiv 0902.4025gr-qc
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早期宇宙学中相对论性自旋流体的扭转效应

On the torsion effects of a relativistic spin fluid in early cosmology

G. de Berredo-Peixoto, E. A. de Freitas

摘要:

本文在爱因斯坦-嘉当理论的框架下研究了早期宇宙学中的挠率效应。我们研究了具有动态类时轴向流的均匀且各向同性的相对论韦森霍夫自旋流体的解,该流体也是均匀且各向同性的。一般的解可以用三个特解来描述。这些解决方案(如奇异性避免和原始或后期加速膨胀)的属性进行了分析,并依赖于源参数之间的关系。

英文摘要:

In this work we investigate the effects of torsion in the framework of Einstein-Cartan theory in early cosmology. We study solutions for a homogeneous and isotropic relativistic Weyssenhoff spin fluid with dynamical timelike axial current, also homogeneous and isotropic. The general solutions can mostly be described by means of three particular solutions. The properties of these solutions (such as singularity avoidance and primordial or late accelerated expansion) are analysed and depend on the relations between the source parameters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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