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arXiv 2004.09248hep-thmath-phmath.MPnlin.SI
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反自对偶Yang-Mills方程的新孤子解

New Soliton Solutions of Anti-Self-Dual Yang-Mills equations

Masashi Hamanaka, Shan-Chi Huang

摘要:

研究了四维空间中具有欧氏、Minkowski和超双曲特征的$G =GL(2)$反自对偶Yang-Mills方程的精确孤子解,构造了作用密度Tr $F_{μν}F^{μν}$可以为实值的特殊单孤子解.通过对实值作用量密度的显式计算,证明了这些孤子是一种新型的四维畴壁。我们的结果是Nimmo,Gilson和Ohta提出的达布变换的成功应用.更令人惊讶的是,这些作用密度在四维空间上的积分被认为不是无穷大而是零。此外,还讨论了在每个实空间上,规范群$G= U(2)$能否在我们的孤子解上实现。

英文摘要:

We study exact soliton solutions of anti-self-dual Yang-Mills equations for $G =GL(2)$ in four-dimensional spaces with the Euclidean, Minkowski and Ultrahyperbolic signatures and construct special kinds of one-soliton solutions whose action density Tr$F_{μν}F^{μν}$ can be real-valued. These solitons are shown to be new type of domain walls in four dimension by explicit calculation of the real-valued action density. Our results are successful applications of the Darboux transformation developed by Nimmo, Gilson and Ohta. More surprisingly, integration of these action densities over the four-dimensional spaces are suggested to be not infinity but zero. Furthermore, whether gauge group $G= U(2)$ can be realized on our solition solutions or not is also discussed on each real space.

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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