arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1807.04296hep-th
收藏

Higgs分支超共形原丛的几何

Geometry of Higgs-branch superconformal primary bundles

Vasilis Niarchos

摘要:

已知四维N=2超共形场论中Higgs支超共形原色的两点和三点函数在N=2超共形流形上服从非重整化定理。本文证明了N=2超共形流形上的Higgs分支超共形原色丛具有平坦联络,或等价地证明了Higgs分支超共形原色在N=2精确的边缘形变下Berry相位为零.这一说法与2d手征代数的刚性结构与4dN =2理论中Schur算子的扇区之间的对应关系非常吻合。我们还讨论了非重整化定理和受保护算子丛的曲率之间的一般相互作用,并提供了一个新的更简单的证明1/2-BPS算子在4d N=4 SYM理论中的消失曲率,不需要使用4d tt* 方程。

英文摘要:

It is known that the two- and three-point functions of Higgs-branch superconformal primaries in 4d N=2 superconformal field theories obey non-renormalization theorems on N=2 superconformal manifolds. In this paper we prove a stronger statement, that the bundles of Higgs-branch superconformal primaries over N=2 superconformal manifolds are endowed with a flat connection, or equivalently that Higgs-branch superconformal primaries have vanishing Berry phases under N=2 exactly marginal deformations. This statement fits well with the proposed correspondence between the rigid structures of 2d chiral algebras and the sector of Schur operators in 4d N=2 theories. We also discuss the general interplay between non-renormalization theorems and the curvature of bundles of protected operators and provide a new simpler proof of the vanishing curvature of 1/2-BPS operators in 4d N=4 SYM theory that does not require the use of the 4d tt* equations.

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。

↑