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arXiv 1004.0867hep-th
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杂种优势通量紧致化中的DWSB

DWSB in heterotic flux compactifications

Johannes Held, Dieter Lust, Fernando Marchesano, Luca Martucci

摘要:

本文讨论了具有内禀挠率和背景通量的杂种紧化中非超对称真空的构造。特别是,我们实现的方法畴壁超对称性破缺(DWSB)先前开发的第二类通量紧致化的背景下。这种方法是基于考虑的背景下,探针NS5膜包裹内部的三个循环,并显示为四维域壁不发展一个BPS界,而所有其他的BPS界特征的N=1超对称紧化被保存在树的水平。通过标量势分析,我们给出了这些背景的条件,从而可以求解包含α'阶修正的10维运动方程。我们还考虑了一些NS5域壁发展的BPS约束的背景,显示它们的关系,无尺度超对称破真空和构造明确的例子,通过椭圆纤维化。最后,我们考虑了具有非平凡的高更诺凝聚的背景,并讨论了它们与超对称真空和非超对称真空的关系。

英文摘要:

We address the construction of non-supersymmetric vacua in heterotic compactifications with intrinsic torsion and background fluxes. In particular, we implement the approach of domain-wall supersymmetry breaking (DWSB) previously developed in the context of type II flux compactifications. This approach is based on considering backgrounds where probe NS5-branes wrapping internal three-cycles and showing up as four-dimensional domain-walls do not develop a BPS bound, while all the other BPS bounds characterizing the N=1 supersymmetric compactifications are preserved at tree-level. Via a scalar potential analysis we provide the conditions for these backgrounds to solve the ten-dimensional equations of motion including order α' corrections. We also consider backgrounds where some of the NS5-domain-walls develop a BPS bound, show their relation to no-scale SUSY-breaking vacua and construct explicit examples via elliptic fibrations. Finally, we consider backgrounds with a non-trivial gaugino condensate and discuss their relation to supersymmetric and non-supersymmetric vacua in the present context.

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