论文标题
KKLT的控制问题
Control issues of KKLT
论文作者
论文摘要
我们分析了在弦理论中构建De Sitter真空的KKLT建议的程度。我们的重点是10D超级近似的质量。作为我们的主要发现，我们发现并量化了一个问题，该问题可能想称之为“单一欺凌问题”。特别是，我们表明，要求曲率在Conifold区域中很小，因此通常将曲率逼入一个制度，在该制度中，在Calabi-yau Erientifold的很大一部分中，扭曲因子变为负。这意味着真正的奇异性，与O-Planes附近的这种类型的熟悉的，理论上控制的奇异性无关。我们还讨论了可能的逃生路线以及其他控制问题，这与对大型t的需求以及复杂拓扑的需求有关。
We analyze to which extent the KKLT proposal for the construction of de Sitter vacua in string theory is quantitatively controlled. Our focus is on the quality of the 10d supergravity approximation. As our main finding, we uncover and quantify an issue which one may want to call the "singular-bulk problem". In particular, we show that, requiring the curvature to be small in the conifold region, one is generically forced into a regime where the warp factor becomes negative in a significant part of the Calabi-Yau orientifold. This implies true singularities, independent of the familiar, string-theoretically controlled singularities of this type in the vicinity of O-planes. We also discuss possible escape routes as well as other control issues, related to the need for a large tadpole and hence for a complicated topology.
