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arXiv 0806.1051hep-th
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具有SU(3)结构的七维流形上M-理论紧化的非阿贝尔结构

Non-Abelian structures in compactifications of M-theory on seven-manifolds with SU(3) structure

Ofer Aharony, Micha Berkooz, Jan Louis, Andrei Micu

摘要:

本文研究了一类特殊的具有SU(3)结构的七维流形上紧化的M-理论。流形可以被看作是一个任意的卡-丘三重在一个圆上的纤维化,具有围绕圆的U-对偶扭曲。在某些情况下,我们发现在四维低能有效理论中出现了(破缺的)非阿贝尔规范群。此外,这样的紧化被证明是对偶的,以前分析的杂种优势弦在K3 × T^2上的紧化,与背景规范场通量在T^2上。

英文摘要:

We study M-theory compactified on a specific class of seven-dimensional manifolds with SU(3) structure. The manifolds can be viewed as a fibration of an arbitrary Calabi-Yau threefold over a circle, with a U-duality twist around the circle. In some cases we find that in the four dimensional low energy effective theory a (broken) non-Abelian gauge group appears. Furthermore, such compactifications are shown to be dual to previously analyzed compactifications of the heterotic string on K3 x T^2, with background gauge field fluxes on the T^2.

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