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arXiv 0705.3161hep-thmath-phmath.MP
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SO(3)Yang-Mills-Higgs系统的Atiyah-Singer指数定理及电荷量子化条件的推导

Atiyah-Singer Index Theorem in an SO(3) Yang-Mills-Higgs system and derivation of a charge quantization condition

Shinichi Deguchi

摘要:

将Atiyah-Singer指数定理推广到二维SO(3)Yang-Mills-Higgs(YMH)系统.利用热核方法和SU(2)规范对称性的非线性实现证明了推广定理。本文将这一定理应用于具有非阿贝尔单极子的四维SO(3)YMH系统中电荷量子化条件的推导。由此得到的电荷e和磁荷g的量子化条件eg = n(n:整数)与Arafune,Freund和Goebel发现的一致。证明了整数n是Dirac算子指数的一半。

英文摘要:

The Atiyah-Singer index theorem is generalized to a two-dimensional SO(3) Yang-Mills-Higgs (YMH) system. The generalized theorem is proven by using the heat kernel method and a nonlinear realization of SU(2) gauge symmetry. This theorem is applied to the problem of deriving a charge quantization condition in the four-dimensional SO(3) YMH system with non-Abelian monopoles. The resulting quantization condition, eg=n (n: integer), for an electric charge e and a magnetic charge g is consistent with that found by Arafune, Freund and Goebel. It is shown that the integer n is half of the index of a Dirac operator.

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