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arXiv 2512.23908hep-thmath-phmath.MPmath.QAmath.RT
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非共轭型的库仑分支:物理学视角

Coulomb Branches of Noncotangent Type: a Physics Perspective

Mykola Dedushenko, Daniel Resnick

AI总结:

从物理学角度研究非共轭型3D $\mathcal{N}=4$ 理论的库仑分支,通过扩展半球分区函数方法,推导库仑分支算符代数并分析其结构。

摘要:

我们研究了具有半超多重子的3D $\mathcal{N}=4$ 规范理论的库仑分支部分,这些理论在一般伪实表示 $\mathbf{R}$ 中(称为非共轭型理论)。这导致了库仑分支的(短)量子化以及库仑分支算符的相关子由1d拓扑部分捕捉。这是通过将半球分区函数方法扩展到非共轭物质来实现的。在这种设定中,首先必须消除奇偶性异常,并克服半超多重子的(2,2)边界条件通常与规范对称性不兼容的障碍。使用规范场的狄拉克边界条件和对半超多重子边界数据的细致处理,我们描述了由此产生的移位/差异算子,这些算子实现了单极插入(包括气泡效应)在 $HS^3$ 上,并利用 $HS^3$ 分区函数作为自然模块,在其上表示库仑分支算符代数 $\mathcal{A}_C$。作为应用,我们推导了 $SU(2)$ 理论的 $\mathcal{A}_C$ 生成元和关系(包括半整数自旋表示),分析了具有库仑分支 $y^2=z(x^2-1)$ 的理论,计算了具有自旋-$\frac{3}{2}$ 半超多重子的 $A_n$ 网格的库仑分支,并检查了一般单极-反单极两点函数的一致性。

英文摘要:

We study the Coulomb-branch sector of 3D $\mathcal{N}=4$ gauge theories with half-hypermultiplets in general pseudoreal representations $\mathbf{R}$ ("noncotangent" theories). This yields (short) quantization of the Coulomb branch and correlators of the Coulomb branch operators captured by the 1d topological sector. This is done by extending the hemisphere partition function approach to noncotangent matter. In this setting one must first cancel the parity anomaly, and overcome an obstacle that $(2,2)$ boundary conditions for half-hypers are generically incompatible with gauge symmetry. Using the Dirichlet boundary conditions for the gauge fields and a careful treatment of half-hypermultiplet boundary data, we describe the resulting shift/difference operators implementing monopole insertions (including bubbling effects) on $HS^3$, and use the $HS^3$ partition function as a natural module on which the Coulomb-branch operator algebra $\mathcal{A}_C$ is represented. As applications we derive generators and relations of $\mathcal{A}_C$ for $SU(2)$ theories with general matter (including half-integer spin representations), analyze theories with Coulomb branch $y^2=z(x^2-1)$, compute the Coulomb branch of an $A_n$ quiver with spin-$\frac32$ half-hypers, and check consistency of a general monopole-antimonopole two-point 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。

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