arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1107.3568hep-th
收藏

量子能量与受限单极子的张量中心荷

Quantum Energies and Tensorial Central Charges of Confined Monopoles

David Burke, Robert Wimmer

摘要:

我们研究了\cal{N} =2 SQCD中的Higgs相磁单极子的不同方面,这些磁单极子被(非阿贝尔)涡旋所限制,具有规范群U(N)和N_f >= N质量味,包括广义FI项.我们计算特别是微扰量子修正(多)限制单极子,并确定在中心荷的异常贡献。当N_f = N时,所得结果与二维CP^{N-1}模型中扭结的量子修正相吻合.为了规范理论,我们将其嵌入一个具有恒定U(1)背景场的六维模型中,该背景场在降维后产生质量。本文用SU(2)_R协变的方法讨论了(局域)susy代数及其包含张量中心荷的表示.得到的SU(2)R协变1/4 BPS方程表明,SU(2)R与受限体系的空间取向无关.然而,在量子水平上,我们发现超对称性将空间SU(2)与R-对称SU(2)_R联系起来。

英文摘要:

We study different aspects of monopoles in the Higgs phase which are confined by (non-abelian) vortices in \cal{N}=2 SQCD with gauge group U(N) and N_f >= N massive flavors, including generalized FI-terms. We compute in particular the perturbative quantum corrections for (multiple) confined monopoles and identify an anomalous contribution in the central charge. For N_f = N the results match the quantum corrections for kinks in two-dimensional CP^{N-1} models. To regulate the theory we embedded it in a six-dimensional model with constant U(1) background fields which generate the masses upon dimensional reduction. We discuss the (local) susy algebra and its representations including tensorial central charges, which are carried by the confined monopoles, in an SU(2)_R covariant way. The resulting SU(2)_R covariant 1/4 BPS equations show that there is no correlation between the SU(2)_R and the spatial orientation of the confined monopole system. However, at the quantum level we find that supersymmetry links the spatial SU(2) with the R-symmetry SU(2)_R.

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。

↑