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arXiv 0810.5768hep-thgr-qchep-ph
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翘曲紧化中的万有Kaehler模

The Universal Kaehler Modulus in Warped Compactifications

Andrew R. Frey, Gonzalo Torroba, Bret Underwood, Michael R. Douglas

摘要:

利用广义相对论的Hamilton公式,构造了翘曲紧化中的普适Kaehler模的有效理论.时空依赖的10维解决方案是在线性水平上构造的体积模量和它的轴子合作伙伴,和非平凡的取消翘曲效应被发现在降维。我们的主要结果是,Kaehler潜在的不校正翘曲,整体移位的体积模量的背景值。我们扩展分析超出了线性近似计算完全backreacted 10维度量对应于一个有限的体积模量波动。此外,我们还讨论了在强翘曲区域的模量的行为,并表明,有没有轻卡鲁扎-克莱因模式的混合。这些结果对通量紧致化的唯象学和宇宙学都有重要意义。

英文摘要:

We construct the effective theory of the universal Kaehler modulus in warped compactifications using the Hamiltonian formulation of general relativity. The spacetime dependent 10d solution is constructed at the linear level for both the volume modulus and its axionic partner, and nontrivial cancellations of warping effects are found in the dimensional reduction. Our main result is that the Kaehler potential is not corrected by warping, up to an overall shift in the background value of the volume modulus. We extend the analysis beyond the linearized approximation by computing the fully backreacted 10d metric corresponding to a finite volume modulus fluctuation. Also, we discuss the behavior of the modulus in strongly warped regions and show that there are no mixings with light Kaluza-Klein modes. These results are important for the phenomenology and cosmology of flux compactifications.

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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