Fiber-base duality and global symmetry enhancement

Fiber-base duality and global symmetry enhancement
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纤维基二元性和全局对称性增强

DOI:
10.1007/jhep04(2015)052
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发表时间:
2014
影响因子:
5.4
通讯作者:
F. Yagi
F. Yagi
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
V. Mitev;E. Pomoni;M. Taki;F. Yagi

文献摘要

被引文献

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我们证明了5D Nekrasov配分函数具有UV不动点的增强的整体对称性。纤维基的对偶性是全局对称性增强的原因。对于Nf ≤ 7味的SU(2),纤维基对称性与明显味SO(2Nf)对称性一起产生ENf+1$ {\mathrm{E}}_{N_{f+1} $}整体对称性,而在更高秩的情况下,由纤维基对偶映射关联的两个对偶理论的明显整体对称性产生对称性增强。一旦我们为库仑模量选择了一个合适的重新参数化,在配分函数水平上的对称性增强是显而易见的。
A bstractWe show that the 5D Nekrasov partition functions enjoy the enhanced global symmetry of the UV fixed point. The fiber-base duality is responsible for the global symmetry enhancement. For SU(2) with Nf ≤ 7 flavors the fiber-base symmetry together with the manifest flavor SO(2Nf) symmetry generate the ENf+1$$ {\mathrm{E}}_{N_{f+1}} $$ global symmetry, while in the higher rank case the manifest global symmetry of the two dual theories related by the fiber-base duality map generate the symmetry enhancement. The symmetry enhancement at the level of the partition function is manifest once we chose an appropriate reparametrization for the Coulomb moduli.