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arXiv 0904.1848hep-th
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非对易离散空间中作为瞬子的涡旋:$Z_{2}$坐标的应用

Vortices as Instantons in Noncommutative Discrete Space: Use of $Z_{2}$ Coordinates

Hideharu Otsu, Toshiro Sato, Hitoshi Ikemori, Shinsaku Kitakado

摘要:

我们证明了$R^{2}$空间中的Yang-Mills-Higgs模型的涡旋可以看作是$R^{2}\times Z_{2}$空间中的Yang-Mills模型的瞬子。为此,我们通过明确地固定$Z_{2}$坐标,构造了非对易的$Z_{2}$空间,然后利用$Z_{2}$坐标,证明了涡旋的BPS方程可以看作是一个自对偶方程.我们还提出了利用自对偶方程将涡的BPS方程改写为ADHM方程的可能性。

英文摘要:

We show that vortices of Yang-Mills-Higgs model in $R^{2}$ space can be regarded as instantons of Yang-Mills model in $R^{2}\times Z_{2}$ space. For this, we construct the noncommutative $Z_{2}$ space by explicitly fixing the $Z_{2}$ coordinates and then show, by using the $Z_{2}$ coordinates, that BPS equation for the vortices can be considered as a self-dual equation. We also propose the possibility to rewrite the BPS equations for vortices as ADHM equations through the use of self-dual equation.

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