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arXiv 0904.1344hep-th
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孪生超引力

Twin Supergravities

Diederik Roest, Henning Samtleben

摘要:

我们研究了超引力对可以具有相同的玻色场内容而具有不同的费米子扩展的现象。这样的孪生理论被分类,并表明起源于一个共同的理论与更多的超对称性截断。此外,我们还讨论了孪生理论的可能规范和标量势。这使得我们可以精确地指出这些结构在多大程度上是由底层卡茨-穆迪代数的纯玻色子结构决定的,以及超对称性在哪里发挥作用。作为例子,我们分析了具有相同玻色子扇区的六维N=(0,1)和N=(2,1)理论的规范,并明确地计算出它们的标量势。在最大超引力中,两种势能之间的差异找到了一个自然的解释,两种理论都可以嵌入其中。

英文摘要:

We study the phenomenon that pairs of supergravities can have identical bosonic field content but different fermionic extensions. Such twin theories are classified and shown to originate as truncations of a common theory with more supersymmetry. Moreover, we discuss the possible gaugings and scalar potentials of twin theories. This allows to pinpoint to which extent these structures are determined by the purely bosonic structure of the underlying Kac-Moody algebras and where supersymmetry comes to plays its role. As an example, we analyze the gaugings of the six-dimensional N=(0,1) and N=(2,1) theories with identical bosonic sector and explicitly work out their scalar potentials. The discrepancy between the potentials finds a natural explanation within maximal supergravity, in which both theories may be embedded.

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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