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arXiv 1104.3587hep-th
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如何将最大超重力减半

How to halve maximal supergravity

Giuseppe Dibitetto, Adolfo Guarino, Diederik Roest

摘要:

我们在四维空间中计算了从最大超引力到半最大超引力的截断。特别是,我们确定了这两种理论的嵌入张量的显式约束。这些张量指定了完整的理论,包括规范群和标量势。首先,我们找到了N=8理论的线性约束,允许截断到N=4。其次,我们从N=8确定额外的N=4个二次约束。最后,我们评论膜解释为蝌蚪的条件,后者。

英文摘要:

We work out the truncation from maximal to half-maximal supergravity in four dimensions. In particular, we determine the explicit constraints on the embedding tensors of both theories. These tensors specify the complete theories, including gauge groups and scalar potentials. Firstly, we find the linear constraint on N=8 theories to allow for a truncation to N=4. Secondly, we determine the additional N=4 quadratic constraints following from N=8. Finally, we comment on a brane interpretation as tadpole conditions for the latter.

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