论文标题
在稳定的IIA型De-Sitter真空吸尘器上
On stable type IIA de-Sitter vacua with geometric flux
论文作者
论文摘要
我们提出了一类无速牛（稳定）广告以及IIA Erientifold型压缩的DS解决方案。该模型基于具有几何通量的类型IIA设置，此外，该设置还包括通常的NS-NS三型Flux $ {\ rm H} _3 $和RR $ P $ -Form-form-form-form fluxes $ {\ rm f} _p {尽管所有的萨克斯式模量均已稳定，但仍存在平坦的RR轴的组合，并且通过几何通量引起的$ d $ term效应实现了DS溶液，没有该效应，只有它只能具有ADS溶液。使用通量缩放参数，我们还讨论了如何在这些模型中设计一个参数控制，这是在实现大容量，弱字符串耦合以及大型复杂结构方案的各个ADS/DS解决方案的意义上。我们还讨论了开放的可能性（例如，关于拥有完整的Bianchi身份的未知状态），在这些状态下，这种无tachyon的DS解决方案可能会或可能是不可行的。
We present a class of tachyon-free (stable) AdS as well as dS solutions in the context of type IIA orientifold compactifications. This model is based on a type IIA setting having geometric flux which, in addition, also includes the usual NS-NS three-form flux ${\rm H}_3$ and the RR $p$-form fluxes ${\rm F}_p$ for $p \in \{0, 2, 4, 6\}$. Although all the saxionic moduli are stabilized, there remains a combination of the RR axions which is flat, and the dS solution is realized through the $D$-term effects induced by the geometric fluxes, without which one can only have AdS solutions. Using flux scaling arguments we also discuss how to engineer a parametric control in these models, in the sense of realizing the respective AdS/dS solutions in large volume, weak string-coupling as well as large complex-structure regime. We also discuss open possibilities (e.g. about the unknown status on having the complete set of Bianchi identities) under which such tachyon-free dS solutions may or may not be viable.
