论文标题

戈德斯蒂诺冷凝?

Goldstino Condensation?

论文作者

Kallosh, Renata, Linde, Andrei, Wrase, Timm, Yamada, Yusuke

论文摘要

在\ cite {dallagata:2022abm}中被争论,即Volkov-Akulov(VA)模型以及Supergravity中的类似模型和弦乐理论中相关的KKLT模型,由于戈德斯蒂诺浓缩而遭受了速度不足。 \ cite {dallagata:2022abm}的作者构建了一个特定模型,具有两个无约束的相互作用的手性超级场,具有线性实现的超对称性,具有不稳定的真空。他们声称,该模型在UV限制中等同于VA模型。我们表明,它们的模型的UV极限是不连续的,并且在\ cite {dallagata:20222abm}中提出的模型的真空不稳定性与VA模型,超级型模型和KKLT构造无关。

It was argued in \cite{DallAgata:2022abm} that the Volkov-Akulov (VA) model as well as similar models in supergravity and the related KKLT model in string theory, suffer from tachyonic instabilities due to goldstino condensation. The authors of \cite{DallAgata:2022abm} constructed a specific model with two unconstrained interacting chiral superfields with linearly realized supersymmetry which has an unstable vacuum. They claimed that this model becomes equivalent to the VA model in the UV limit. We show that the UV limit of their model is discontinuous, and the vacuum instability of the model proposed in \cite{DallAgata:2022abm} is not relevant to the VA model, to related models in supergravity, and to the KKLT construction.

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