KKLT中dS隆起的4维模型
4d models of dS uplift in KKLT
摘要：
在arXiv：1808.09428中表明，在arXiv：1707.08678中提出的KKLT模型的修改的4d版本对于在arXiv：1707.08678中提出的参数$c$的大值是不一致的，因为在模空间中存在$|D_SW|^2$消失的点。作者对4d KKLT模型arXiv：1809.06618进行了另一次修改。然而，对于大的$c$，该模型遭受甚至更糟的问题：不仅在模空间中存在$|D_SW|^2$为零的点，而且在模空间中存在$|D_SW|^2$为负的区域。同时，对于小型$c$，这些型号具有dS真空。我们构造改进的模型，这是完全一致的所有参数值，就像原来的版本的KKLT模型使用幂零超场。这些型号具有适用于广泛参数值的dS真空系列。因此，所有目前可用的一致的推广的4D KKLT模型的分析结果，在其有效性的域，确认dS真空在KKLT的情况下的存在。
英文摘要：
It was shown in arXiv:1808.09428 that the modified 4d version of the KKLT model proposed in arXiv:1707.08678 is inconsistent for large values of the parameter $c$ advocated in arXiv:1707.08678, since there is a point in the moduli space where $|D_SW|^2$ vanishes. The authors responded with yet another modification of the 4d KKLT model arXiv:1809.06618. However, for large $c$, this model suffers from an even worse problem: not only is there a point in the moduli space where $|D_SW|^2$ vanishes, there is also a region in the moduli space where $|D_SW|^2$ is negative. Meanwhile for small $c$ these models have dS vacua. We construct improved models, which are fully consistent for all values of parameters, just as the original version of the KKLT model using a nilpotent superfield. These models have a family of dS vacua for a broad range of parameter values. Thus, the results of the analysis of all presently available consistent generalizations of the 4d KKLT model, in the domain of their validity, confirm the existence of dS vacua in the KKLT scenario.
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