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arXiv 1706.08883hep-th
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双场论中IIA型理论的大变形

Massive Deformations of Type IIA Theory Within Double Field Theory

Aybike Catal-Ozer

摘要:

通过无质量II型弦的双场论(DFT)的对偶扭曲约化,得到IIA型超引力理论的大变形。质量变形是通过降低RR扇区的DFT而引起的。这样的减少由属于$Spin^+(10,10)$的扭曲元素确定,$Spin^+(10,10)$是RR扇区的DFT的对偶群。我们确定的扭曲的形式,并给出扭曲矩阵,其中一个巨大的变形的IIA型理论可以得到特定的例子。在其中一种情况下,RR扇区的规范不变性要求意味着介子场必须对其中一个对偶坐标具有线性依赖性。在另一种情况下,扭曲矩阵的选择违反了弱约束和强约束显式的内部加倍空间。

英文摘要:

We obtain massive deformations of Type IIA supergravity theory through duality twisted reductions of Double Field Theory (DFT) of massless Type II strings. The mass deformation is induced through the reduction of the DFT of the RR sector. Such reductions are determined by a twist element belonging to $Spin^+(10,10)$, which is the duality group of the DFT of the RR sector. We determine the form of the twists and give particular examples of twist matrices, for which a massive deformation of Type IIA theory can be obtained. In one of the cases, requirement of gauge invariance of the RR sector implies that the dilaton field must pick up a linear dependence on one of the dual coordinates. In another case, the choice of the twist matrix violates the weak and the strong constraints explicitly in the internal doubled space.

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