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arXiv 1206.4034hep-thastro-ph.COhep-ph
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弦论中的张量模

Tensor modes on the string theory landscape

Alexander Westphal

摘要:

本文试图估计弦论中张量模分数$r$在真空中的分布。永恒暴胀和量子隧道的动态导致了景观上的一种民主,无论测量类别如何,都不会偏向大场或小场暴胀。张量模分数则遵循景观上弦论暴胀机制的数频分布。我们表明,估计的相对数频率的小场与大场的通货膨胀,而无法达到的整个景观,可能是达到作为一个区域的答案弯曲的卡-丘通量紧化的IIB型弦论。

英文摘要:

We attempt an estimate for the distribution of the tensor mode fraction $r$ over the landscape of vacua in string theory. The dynamics of eternal inflation and quantum tunneling lead to a kind of democracy on the landscape, providing no bias towards large-field or small-field inflation regardless of the class of measure. The tensor mode fraction then follows the number frequency distributions of inflationary mechanisms of string theory over the landscape. We show that an estimate of the relative number frequencies for small-field vs large-field inflation, while unattainable on the whole landscape, may be within reach as a regional answer for warped Calabi-Yau flux compactifications of type IIB string theory.

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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