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arXiv 0910.4963hep-th
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四维超共形场论中的拓扑反拓扑融合

Topological Anti-Topological Fusion in Four-Dimensional Superconformal Field Theories

Kyriakos Papadodimas

摘要:

本文给出了一般四维超共形场论的一些新的精确结果。我们推导了控制手征初级色散因子的耦合常数依赖性的微分方程。对于N=2的理论,我们证明了模空间上的Zamolodchikov度量和手征原色的算子混合是拟拓扑量,并受全纯性约束。我们发现的方程是二维tt* 方程的四维类似物,由Cecotti和Vafa的“拓扑反拓扑融合”方法发现。我们的分析依赖于共形扰动理论和超共形沃德恒等式,不使用拓扑扭曲。

英文摘要:

We present some new exact results for general four-dimensional superconformal field theories. We derive differential equations governing the coupling constant dependence of chiral primary correlators. For N=2 theories we show that the Zamolodchikov metric on the moduli space and the operator mixing of chiral primaries are quasi-topological quantities and constrained by holomorphy. The equations that we find are the four-dimensional analogue of the tt* equations in two-dimensions, discovered by the method of "topological anti-topological fusion" by Cecotti and Vafa. Our analysis relies on conformal perturbation theory and the superconformal Ward identities and does not use a topological twist.

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