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arXiv 0708.0897hep-th
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标量场和超快子场的膜世界暴胀

Brane World Inflation with Scalar and Tachyon Fields

B. C. Paul, Dilip Paul

摘要:

我们提出了在膜世界方案中分别考虑标量场和快子场的早期宇宙暴胀模型。本文采用Chervon和Zhuravlev的方法得到了不受标量场势限制的暴胀宇宙学模型。我们注意到,与标量场一样,快子场的暴胀解也不依赖于它的势。然而,与标量场不同,快子暴胀是从场的受限区域开始的。我们分别用标量场和快子场得到了暴胀势。结果表明,与标量场不同,快子场暴胀现象可以从t > t_0开始实现。

英文摘要:

We present inflationary models of the early universe in the braneworld scenario considering both scalar field and tachyon field separately. The technique of Chervon and Zhuravlev to obtain inflationary cosmological models without restrictions on a scalar field potential is employed here. We note that like scalar field, the inflationary solution obtained here with tachyon field also does not depend on its potential. However, unlike scalar field, inflation with tachyon is obtained for a restricted domains of the field to begin with. We obtain potentials for which one gets inflation using both scalar field and tachyon field separately. It is found that unlike the scalar field, the tachyonic field inflation sceanario can be realized from t > t_o.

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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