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arXiv 0705.2101hep-th
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最大D=4超引力

The maximal D=4 supergravities

Bernard de Wit, Henning Samtleben, Mario Trigiante

摘要:

所有最大的超引力在四个时空维度。无规范拉格朗日量可以编码在与执行电/磁对偶变换的自由度相关联的E_7(7)\Sp(56,R)/GL(28)矩阵中。规范是根据嵌入张量来定义的,嵌入张量编码E_7(7)的子群,该子群被实现为局部不变性。这种嵌入张量可能意味着磁荷的存在,这需要相应的对偶规范场。后者可以通过使用最近提出的一个涉及E_7(7)的伴随表示中的张量规范场的公式来合并。在这个公式中,结果采取一个普遍的形式,而不管电/磁对偶性的基础。我们提出了一般类的超对称和规范不变的拉格朗日量,并讨论了一些应用。

英文摘要:

All maximal supergravities in four space-time dimensions are presented. The ungauged Lagrangians can be encoded in an E_7(7)\Sp(56,R)/GL(28) matrix associated with the freedom of performing electric/magnetic duality transformations. The gauging is defined in terms of an embedding tensor which encodes the subgroup of E_7(7) that is realized as a local invariance. This embedding tensor may imply the presence of magnetic charges which require corresponding dual gauge fields. The latter can be incorporated by using a recently proposed formulation that involves tensor gauge fields in the adjoint representation of E_7(7). In this formulation the results take a universal form irrespective of the electric/magnetic duality basis. We present the general class of supersymmetric and gauge invariant Lagrangians and discuss a number of applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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