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arXiv 2005.11329hep-th
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Kähler模量稳定化的系统方法

A Systematic Approach to Kähler Moduli Stabilisation

Shehu AbdusSalam, Steven Abel, Michele Cicoli, Fernando Quevedo, Pramod Shukla

摘要:

在IIB型弦紧化中实现具有数百个Kähler模的通用Calabi-Yau三重模的完全模稳定是出了名的困难。这不仅是由于计算复杂性随着模的数量而迅速增加,而且还由于标量势一般只隐含地依赖于超引力变量。事实上,超引力手征坐标是4圈体积模量,但凯勒势是2圈体积模量的显函数,这两个变量之间的反演通常是不可能的。在本文中,我们提出了一个一般的方法,以系统的方式固定所有IIB型Kähler模量,直接在2圈模量方面工作:一方面,我们提出了一个“主公式”的标量的潜力,可以依赖于一个任意数量的Kähler模数,而另一方面,我们执行基于计算机的搜索临界点,引入混合遗传/聚类/变形虫算法和其他计算技术。这使我们能够重现几个已知的极小值,但也发现新的例子KKLT和LVS模型,连同新的类LVS极小没有对角德尔佩佐因子和混合真空共享一些功能与KKLT和其他LVS解决方案。

英文摘要:

Achieving full moduli stabilisation in type IIB string compactifications for generic Calabi-Yau threefolds with hundreds of Kähler moduli is notoriously hard. This is due not just to the very fast increase of the computational complexity with the number of moduli, but also to the fact that the scalar potential depends in general on the supergravity variables only implicitly. In fact, the supergravity chiral coordinates are 4-cycle volume moduli but the Kähler potential is an explicit function of the 2-cycle moduli and inverting between these two variables is in general impossible. In this paper we propose a general method to fix all type IIB Kähler moduli in a systematic way by working directly in terms of 2-cycle moduli: on one side we present a `master formula' for the scalar potential which can depend on an arbitrary number of Kähler moduli, while on the other we perform a computer-based search for critical points, introducing a hybrid Genetic/Clustering/Amoeba algorithm and other computational techniques. This allows us to reproduce several known minima, but also to discover new examples of both KKLT and LVS models, together with novel classes of LVS minima without diagonal del Pezzo divisors and hybrid vacua which share some features with KKLT and other with LVS solutions.

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