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arXiv 1105.5347hep-th
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关于四边形膜拼接的结构

On the structure of quadrilateral brane tilings

Paul de Medeiros

摘要:

在弦理论和M理论中,膜镶嵌提供了最一般的框架,用于匹配由膜探测的复曲面卡-丘奇性与超规范理论的超共形不动点。膜平铺数据由编码的经典超势和规范规范理论的规范物质耦合的环面的二分平铺。我们考虑的瓷砖类,其中只包含瓷砖有界的四个边缘,并提出了一种方法,用于生成任何瓷砖在这个类内的迭代组合的某些图论移动。在IIB弦论中的D3-膜的背景下,我们考虑了在四维中相应的超对称双规范理论类中这些生成移动的影响。特别感兴趣的是它们对超势的影响,真空模空间和必要的条件理论达到超共形不动点在红外。我们讨论了一般结构的物理容许四边形膜tilings和Seiberg对偶的某些复合移动在这个类。

英文摘要:

Brane tilings provide the most general framework in string and M-theory for matching toric Calabi-Yau singularities probed by branes with superconformal fixed points of quiver gauge theories. The brane tiling data consists of a bipartite tiling of the torus which encodes both the classical superpotential and gauge-matter couplings for the quiver gauge theory. We consider the class of tilings which contain only tiles bounded by exactly four edges and present a method for generating any tiling within this class by iterating combinations of certain graph-theoretic moves. In the context of D3-branes in IIB string theory, we consider the effect of these generating moves within the corresponding class of supersymmetric quiver gauge theories in four dimensions. Of particular interest are their effect on the superpotential, the vacuum moduli space and the conditions necessary for the theory to reach a superconformal fixed point in the infrared. We discuss the general structure of physically admissible quadrilateral brane tilings and Seiberg duality in terms of certain composite moves within this class.

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