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arXiv 1504.06978hep-thhep-ph
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杂种优势模量稳定化与非超对称杂交

Heterotic Moduli Stabilisation and Non-Supersymmetric Vacua

Andre Lukas, Zygmunt Lalak, Eirik Eik Svanes

摘要:

我们研究了四维$N=1$超引力理论中的模稳定化问题,该理论起源于某些具有$SU(3)$结构的流形上的杂化弦的紧化。这些理论具有由几何通量产生的非平凡超势,并且通常具有与异常$U(1)$对称性相关的D项。我们证明,在微扰水平上,没有超对称保持真空。然而,在一定的技术条件的D-项对齐的极值的F-项和D-项的潜力,$\partial_iV_F=\partial_iV_D=0$,我们发现在微扰水平解析稳定的AdS真空打破超对称性。因此,所有的T-模量和微扰稳定与超对称性破缺在一个高的尺度。我们还数值表明,类似的真空时,可以找到放松的D-项的技术条件。这些真空在非微扰效应存在的情况下仍然存在。在所有情况下,真空仍然是AdS。

英文摘要:

We study moduli stabilisation in four-dimensional $N=1$ supergravity theories which originate from compactifications of the heterotic string on certain manifolds with $SU(3)$ structure. These theories have a non-trivial superpotential generated from geometric flux and, in general, D-terms associated to anomalous $U(1)$ symmetries. We show that, at the perturbative level, there are no supersymmetry preserving vacua. However, subject to a certain technical condition on the D-terms which aligns the extrema of the F-term and D-term potentials, $\partial_iV_F=\partial_iV_D=0$, we find at the perturbative level analytic stable AdS vacua which break supersymmetry. As a result, all T-moduli and the dilaton are stabilised perturbatively with supersymmetry broken at a high scale. We also show numerically that similar vacua can be found when the technical condition on the D-term is relaxed. These vacua persist in the presence of non-perturbative effects. In all cases, the vacua remain AdS.

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