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arXiv 1008.4286hep-th
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Scherk-Schwarz约化的新势能

New potentials from Scherk-Schwarz reductions

Hugo Looyestijn, Erik Plauschinn, Stefan Vandoren

摘要:

我们研究了Calabi-Yau三倍圆上的11维超引力的紧化,沿着圆有一个Scherk-Schwarz对偶扭曲。这导致四维N=2规范超引力与半正定的标量场的潜力,我们推导明确。此外,受弦论中的定向折叠投影的启发,我们定义了N=1超引力的截断。我们确定的D-条款,Kaehler和超势为这些模型和研究的真空的性质。最后,我们指出了具有G2结构的七维流形上的M-理论紧化的一个关系。

英文摘要:

We study compactifications of eleven-dimensional supergravity on Calabi-Yau threefolds times a circle, with a duality twist along the circle a la Scherk-Schwarz. This leads to four-dimensional N=2 gauged supergravity with a semi-positive definite potential for the scalar fields, which we derive explicitly. Furthermore, inspired by the orientifold projection in string theory, we define a truncation to N=1 supergravity. We determine the D-terms, Kaehler- and superpotentials for these models and study the properties of the vacua. Finally, we point out a relation to M-theory compactifications on seven-dimensional manifolds with G2 structure.

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