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arXiv 1204.1065hep-th
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膜几何和二聚体模型

Brane Geometry and Dimer Models

Yang-Hui He, Vishnu Jejjala, Diego Rodriguez-Gomez

摘要:

AdS_5/CFT_4中几乎所有已知的规范理论的场内容和相互作用都可以用二聚体模型或环面上的二分图来表示。与基本单元相关联的是复杂的结构参数τ_R。基于这些理论的膜实现,我们可以指定一个特殊的拉格朗日(SLag)环面纤维化,这是自然的候选人被确定为环面上的二聚体的生活。使用文献中已知的度量,我们计算这个环面的复杂结构τ_G。对于C^3和锥状结构的理论,对于其轨道结构的理论,τ_R = τ_G。然而,对于更复杂的例子,我们表明,这两个复杂的结构不可能是相等的,但值得注意的是,只有百分之几的差异。我们把解释这种非凡的接近作为一个公开的挑战。

英文摘要:

The field content and interactions of almost all known gauge theories in AdS_5/CFT_4 can be expressed in terms of dimer models or bipartite graphs drawn on a torus. Associated with the fundamental cell is a complex structure parameter tau_R. Based on the brane realization of these theories, we can specify a special Lagrangian (SLag) torus fibration that is the natural candidate to be identified as the torus on which the dimer lives. Using the metrics known in the literature, we compute the complex structure tau_G of this torus. For the theories on C^3 and the conifold and for orbifolds thereof tau_R = tau_G. However, for more complicated examples, we show that the two complex structures cannot be equal and yet, remarkably, differ only by a few percent. We leave the explanation for this extraordinary proximity as an open challenge.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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