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arXiv 2102.01627hep-thmath-phmath.MPnlin.SI
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对人们来说,瞬子:一种形式对称的力量

Instantons to the people: the power of one-form symmetries

Giulio Bonelli, Fran Globlek, Alessandro Tanzini

摘要:

通过研究生成一种形式对称的表面算符vev的重整化群方程,证明了在自对偶$Ω$背景下,具有任意简单规范群的$\mathcal{N}=2$超Yang-Mills理论的非微扰动力学是完全确定的.相应的方程组是{ \it非自治} Toda链,时间是RG尺度。我们得到了新的递推关系,提供了一个系统的算法计算多瞬子校正从树水平的单圈prepotential的渐近边界条件的RGE。我们通过计算$E_6$和$G_2$的情况下,两个瞬子。

英文摘要:

We show that the non-perturbative dynamics of $\mathcal{N}=2$ super Yang-Mills theories in a self-dual $Ω$-background and with an arbitrary simple gauge group is fully determined by studying renormalization group equations of vevs of surface operators generating one-form symmetries. The corresponding system of equations is a {\it non-autonomous} Toda chain, the time being the RG scale. We obtain new recurrence relations which provide a systematic algorithm computing multi-instanton corrections from the tree-level one-loop prepotential as the asymptotic boundary condition of the RGE. We exemplify by computing the $E_6$ and $G_2$ cases up to two-instantons.

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