论文标题
关于断裂超对称性的开弦符号轨道模型的稳定性
On the stability of open-string orbifold models with broken supersymmetry
论文作者
论文摘要
我们考虑$ \ MATHCAL {n} = 2 \ to \ Mathcal {n} = 0 $自发断裂在四维Minkowski SpaceTime中自发断裂。它基于IIB类型的Erientifold理论，在$ T^2 \ times t^4/\ Mathbb {z} _2 $上comperted compastion，scherk--schwarz supersymmemememememememememmeTry沿着$ t^2 $实现。我们表明，在模量空间的区域中，超对称性断裂量表低于其他量表，存在具有无质量的Bose-Fermi变性的最小值的配置，从而消失了一环有效的潜力，直至指数抑制的校正。这些背景描述了非亚伯仪的理论，所有开弦模量和炸毁$ t^4/\ mathbb {z} _2 $稳定的模式，而所有未介绍的封闭串线模量都是平坦的方向。具有严格积极有效电位的其他背景存在，其中一个循环中唯一出现的不稳定性与超对称断裂量表相关。所有这些背景都是非扰动的一致的。
We consider an open-string realisation of $\mathcal{N}=2\to \mathcal{N}=0$ spontaneous breaking of supersymmetry in four-dimensional Minkowski spacetime. It is based on type IIB orientifold theory compactified on $T^2\times T^4/\mathbb{Z}_2$, with Scherk--Schwarz supersymmetry breaking implemented along $T^2$. We show that in the regions of moduli space where the supersymmetry breaking scale is lower than the other scales, there exist configurations with minima that have massless Bose-Fermi degeneracy and hence vanishing one-loop effective potential, up to exponentially suppressed corrections. These backgrounds describe non-Abelian gauge theories, with all open-string moduli and blowing up modes of $T^4/\mathbb{Z}_2$ stabilized, while all untwisted closed-string moduli remain flat directions. Other backgrounds with strictly positive effective potentials exist, where the only instabilities arising at one loop are associated with the supersymmetry breaking scale, which runs away. All of these backgrounds are consistent non-perturbatively.
