arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.13198hep-th
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宇宙学常数消失的非超对称Gepner模型

Non-SUSY Gepner Models with Vanishing Cosmological Constant

Koji Aoyama, Yuji Sugawara

摘要:

本文基于卡-丘3-折叠的一般Gepner模型,讨论了在单圈水平上宇宙学常数为零的非超对称II型弦真空的构造.我们用$Z_2 \times Z_4$对Gepner模型进行了轨道折叠,它是不对称的,并加入了一些离散的挠率.我们证明了所得到的II型弦真空确实导致了在一个圈处宇宙学常数的消失,而任何时空超荷只要假设手征形式如“$Q^α_L \equiv \oint dz J_L^α(z)$”就不能被构造.我们进一步讨论了上述模型的可能推广。

英文摘要:

In this article we discuss a construction of non-SUSY type II string vacua with the vanishing cosmological constant at the one loop level based on the generic Gepner models for Calabi-Yau 3-folds. We make an orbifolding of the Gepner models by $Z_2 \times Z_4$, which asymmetrically acts with some discrete torsions incorporated. We demonstrate that the obtained type II string vacua indeed lead to the vanishing cosmological constant at the one loop, whereas any space-time supercharges cannot be constructed as long as assuming the chiral forms such as '$Q^α_L \equiv \oint dz J_L^α(z)$'. We further discuss possible generalizations of the models described above.

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