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arXiv 1202.1608hep-thgr-qc
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5D驻波膜世界中的各向异性暴胀与降维

Anisotropic Inflation in a 5D Standing Wave Braneworld and Dimensional Reduction

Merab Gogberashvili, Alfredo Herrera-Aguilar, Dagoberto Malagon-Morejon, Refugio Rigel Mora-Luna

摘要:

我们研究了一个由引力耦合到无质量标量幻影场的5D驻波膜世界模型框架内的宇宙学解。通过获得模型的完全精确解,我们发现了一种新的动力学机制,其中原始度量的各向异性性质引起i)沿某些空间维度的膨胀,以及ii)沿其他方向的空间维度数量的收缩和收缩减少。这种动力学机制可以与弦和其他高维理论中的降维有关,以试图获得4D各向同性膨胀时空。

英文摘要:

We investigate a cosmological solution within the framework of a 5D standing wave braneworld model generated by gravity coupled to a massless scalar phantom-like field. By obtaining a full exact solution of the model we found a novel dynamical mechanism in which the anisotropic nature of the primordial metric gives rise to i) inflation along certain spatial dimensions, and ii) deflation and a shrinking reduction of the number of spatial dimensions along other directions. This dynamical mechanism can be relevant for dimensional reduction in string and other higher dimensional theories in the attempt of getting a 4D isotropic expanding space-time.

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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