arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.2592hep-th
收藏

将四维索引约简为S^3配分函数

Reducing the 4d Index to the S^3 Partition Function

Abhijit Gadde, Wenbin Yan

摘要:

四维规范理论的超共形指数是由S^3 × S^1上的超对称路径积分到鞍点的局部化所产生的矩阵积分计算的。当圆的半径为零时,很自然地可以预期四维路径积分成为S ^3上降维的规范理论的配分函数。我们表明,这确实是这样的情况下,并恢复Kapustin,Willet和Yaakov的矩阵积分的矩阵积分,计算超共形指数。值得注意的是,“母体”四维理论的超共形指数可以被认为是三维配分函数的q变形。

英文摘要:

The superconformal index of a 4d gauge theory is computed by a matrix integral arising from localization of the supersymmetric path integral on S^3 x S^1 to the saddle point. As the radius of the circle goes to zero, it is natural to expect that the 4d path integral becomes the partition function of dimensionally reduced gauge theory on S^3. We show that this is indeed the case and recover the matrix integral of Kapustin, Willet and Yaakov from the matrix integral that computes the superconformal index. Remarkably, the superconformal index of the "parent" 4d theory can be thought of as the q-deformation of the 3d partition function.

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。

↑