The virtue of defects in 4D gauge theories and 2D CFTs

The virtue of defects in 4D gauge theories and 2D CFTs
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4D 规范理论和 2D CFT 缺陷的优点

DOI:
10.1007/jhep06(2011)025
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发表时间:
2011
影响因子:
5.4
通讯作者:
Drukker N
Drukker N
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Drukker N

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提出了我们所构造的Liouville和Toda共形场理论中的拓扑缺陷算子与s4上四维超对称规范理论中的环算子和域壁算子的对应关系。我们计算了Liouville/Toda理论中存在拓扑缺陷算子时的相关函数,得到了四维规范理论中存在各种壁和环算子时的配分函数的精确答案;我们可以用独立的规范理论分析定量地证实这些结果。在二维共形场理论中,我们证明了拓扑缺陷算子和Verlinde环算子是同一算子的不同描述。
We advance a correspondence between the topological defect operators in Liouville and Toda conformal field theories—which we construct—and loop operators and domain wall operators in four dimensionalsupersymmetric gauge theories on S 4. Our computation of the correlation functions in Liouville/Toda theory in the presence of topological defect operators, which are supported on curves on the Riemann surface, yields the exact answer for the partition function of four dimensional gauge theories in the presence of various walls and loop operators; results which we can quantitatively substantiate with an independent gauge theory analysis. As an interesting outcome of this work for two dimensional conformal field theories, we prove that topological defect operators and the Verlinde loop operators are different descriptions of the same operators.
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