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arXiv 1502.05405hep-th
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6D SCFT的原子分类

Atomic Classification of 6D SCFTs

Jonathan J. Heckman, David R. Morrison, Tom Rudelius, Cumrun Vafa

摘要:

我们用F-理论来分类可能所有的六维超共形场论(SCFT)。这涉及到两个步骤:我们首先对F理论中允许的所有可能的张量分支进行分类(对应于允许的可收缩球集合),然后对包裹在它们上面的所有可能的七膜构型进行分类。我们用化学中的一个类比来描述第一步,即“原子”结合成“基团”和“分子”。第二步是用反常抵消约束的颤抖型规范理论解释。我们分析的一个非常令人惊讶的结果是,所有这些张量分支都具有交叉球体的线性链结构,两端可能有少量装饰。这些SCFT的最终结构采取了由共形物质连接的ADE型节点组成的一般化节点的形式。一个高度非平凡的例子,涉及E8小瞬子探测ADE奇点的集合被证明有一个F-理论实现。这产生了一个分类的同态从ADE子群的SU(2)到E8在纯粹的几何条款,在很大程度上匹配的结果,在数学文献中获得的一个复杂的群论分析。

英文摘要:

We use F-theory to classify possibly all six-dimensional superconformal field theories (SCFTs). This involves a two step process: We first classify all possible tensor branches allowed in F-theory (which correspond to allowed collections of contractible spheres) and then classify all possible configurations of seven-branes wrapped over them. We describe the first step in terms of "atoms" joined into "radicals" and "molecules," using an analogy from chemistry. The second step has an interpretation via quiver-type gauge theories constrained by anomaly cancellation. A very surprising outcome of our analysis is that all of these tensor branches have the structure of a linear chain of intersecting spheres with a small amount of possible decoration at the two ends. The resulting structure of these SCFTs takes the form of a generalized quiver consisting of ADE-type nodes joined by conformal matter. A collection of highly non-trivial examples involving E8 small instantons probing an ADE singularity is shown to have an F-theory realization. This yields a classification of homomorphisms from ADE subgroups of SU(2) into E8 in purely geometric terms, largely matching results obtained in the mathematics literature from an intricate group theory analysis.

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