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arXiv 1104.2329hep-th
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N=1型IIA中D6-branes的有效action定向折叠

The effective action of D6-branes in N=1 type IIA orientifolds

Max Kerstan, Timo Weigand

摘要:

我们使用Kaluza-Klein约化来计算一个时空填充D 6-膜包裹在一个特殊的拉格朗日3-圈的IIA型Calabi-Yau orientifold的无质量模式的低能有效作用量。修改的N=1散装orientifold理论的存在下,D 6膜的特征数据进行了分析,通过研究的基础类型IIA超引力耦合到膜worldvolume的民主制定和执行详细的dualisation程序。N=1手性坐标被发现与预期的镜像对称性。我们计算了手征超场的Kahler势,以及体和膜规范多重态的规范动力学函数,包括两者之间的动力学混合。从对偶过程中产生的标量势可以用超势来正式解释。最后,测量的复杂结构的多重峰的Peccei-Quinn移位对称性再现的D-项潜在的执行特殊拉格朗日3-循环的校准条件。

英文摘要:

We use a Kaluza-Klein reduction to compute the low-energy effective action for the massless modes of a spacetime-filling D6-brane wrapped on a special Lagrangian 3-cycle of a type IIA Calabi-Yau orientifold. The modifications to the characteristic data of the N=1 bulk orientifold theory in the presence of a D6-brane are analysed by studying the underlying Type IIA supergravity coupled to the brane worldvolume in the democratic formulation and performing a detailed dualisation procedure. The N=1 chiral coordinates are found to be in agreement with expectations from mirror symmetry. We work out the Kahler potential for the chiral superfields as well as the gauge kinetic functions for the bulk and the brane gauge multiplets including the kinetic mixing between the two. The scalar potential resulting from the dualisation procedure can be formally interpreted in terms of a superpotential. Finally, the gauging of the Peccei-Quinn shift symmetries of the complex structure multiplets reproduces the D-term potential enforcing the calibration condition for special Lagrangian 3-cycles.

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