Instantons, three-dimensional gauge theory, and the Atiyah-Hitchin manifold

Instantons, three-dimensional gauge theory, and the Atiyah-Hitchin manifold
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瞬子、三维规范理论和 Atiyah-Hitchin 流形

DOI:
10.1016/s0550-3213(97)00454-9
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发表时间:
1997
期刊:
Nuclear Physics
影响因子:
--
通讯作者:
S. Vandoren
S. Vandoren
中科院分区:
--
文献类型:
--
作者:
N. Dorey;V. Khoze;M. Mattis;D. Tong;S. Vandoren

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我们研究了规范群 SU(2) 的三维 N = 4 超对称规范理论库仑分支的量子效应。我们使用标准弱耦合方法计算对威尔逊有效作用的微扰和单瞬时贡献。与四维情况不同,尽管具有超对称性,但非零模对瞬子测量的贡献不会抵消。我们的结果使我们能够修复微分方程的弱耦合边界条件,从而确定量子模空间上的超卡勒度量。我们证实了 Seiberg 和 Witten 的提议,即作为超凯勒流形,库仑分支等效于 Atiyah 和 Hitchin 构造的两个 BPS 单极子的中心模空间。
We investigate quantum effects on the Coulomb branch of three-dimensional N = 4 super-symmetric gauge theory with gauge group SU(2). We calculate perturbative and one-instanton contributions to the Wilsonian effective action using standard weak-coupling methods. Unlike the four-dimensional case, and despite supersymmetry, the contribution of non-zero-modes to the instanton measure does not cancel. Our results allow us to fix the weak-coupling boundary conditions for the differential equations which determine the hyper-Kahler metric on the quantum moduli space. We confirm the proposal of Seiberg and Witten that the Coulomb branch is equivalent, as a hyper-Kähler manifold, to the centered moduli space of two BPS monopoles constructed by Atiyah and Hitchin.
DOI: 10.1515/9781400859306
发表时间: 1988
期刊: --
影响因子: --
作者:
M. Atiyah;N. Hitchin
通讯作者: M. Atiyah;N. Hitchin