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arXiv 0802.0355hep-th
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跨普朗克物理学与非对易暴胀

Trans-Planckian Physics and Non-Commutative Inflation

Seoktae Koh

摘要:

普朗克尺度下时空的非对易性可能会使通常的色散关系发生变形。这些变形的色散关系可以导致没有标量场的加速相。本文计算了一类非交换暴胀模型的谱指数和谱指数的游程。在$w \to -1$极限下,非对易暴胀和热辐射给出了一个标度不变的谱和负的运行谱指数,这与WMAP 3年的结果是一致的。

英文摘要:

Non-commutativity of spacetime at the Planck scale may deform the usual dispersion relations. And these deformed dispersion relations could lead to the accelerating phase without a scalar field. In this paper, we have calculated the spectral index and the running of spectral index in a non-commutative inflation model. Non-commutative inflation with thermal radiation gives a scale invariant spectrum in the limit $w \to -1$ and negative running spectral index which are consistent with the WMAP 3-year results.

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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