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arXiv 1005.3546hep-thhep-ph
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精确边缘形变与整体对称性

Exactly Marginal Deformations and Global Symmetries

Daniel Green, Zohar Komargodski, Nathan Seiberg, Yuji Tachikawa, Brian Wecht

摘要:

本文研究了四维空间中N=1超共形场论的精确边缘形变问题。我们发现,边缘手征运营商可以成为不完全边缘的唯一途径是它结合一个保守的电流多重态。此外,我们发现,空间的正好边缘变形,也被称为“共形流形”,是商的空间的边缘耦合的复杂化连续的全球对称群。这一事实解释了为什么在N=1理论中,边缘形变是普遍存在的。我们的方法将精确计数边缘算子的问题转化为群论中的问题,并大大扩展和简化了Leigh和Strassler的分析。我们还简要地讨论了如何将我们的分析应用于三维中的N=2理论。

英文摘要:

We study the problem of finding exactly marginal deformations of N=1 superconformal field theories in four dimensions. We find that the only way a marginal chiral operator can become not exactly marginal is for it to combine with a conserved current multiplet. Additionally, we find that the space of exactly marginal deformations, also called the "conformal manifold," is the quotient of the space of marginal couplings by the complexified continuous global symmetry group. This fact explains why exactly marginal deformations are ubiquitous in N=1 theories. Our method turns the problem of enumerating exactly marginal operators into a problem in group theory, and substantially extends and simplifies the previous analysis by Leigh and Strassler. We also briefly discuss how to apply our analysis to N=2 theories in three dimensions.

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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