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arXiv 1902.07640hep-thmath-phmath.MP
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超对称Grassmannian西格玛模型的常曲率全纯解:$G(2,4)$情形

Constant curvature holomorphic solutions of the supersymmetric grassmannian sigma model: the case of $G(2,4)$

V. Hussin, M. Lafrance, I. Yurdusen

摘要:

利用超对称格拉斯曼西格玛模型$G(M,N)$的规范不变性,研究了该模型的常曲率全纯解.通过推广${C}P^{N-1}$的一个已知结果,构造了超对称不变解.我们证明了其他一些这样的解决方案也存在。实际上,考虑最简单的$G(2,N)$模型,我们给出了得到常曲率全纯解的充要条件。由于已知玻色$G(2,4)$ $σ$模型的所有常曲率全纯解,我们将详细讨论这个例子。

英文摘要:

We explore the constant curvature holomorphic solutions of the supersymmetric grassmannian sigma model $G(M,N)$ using in particular the gauge invariance of the model. Supersymmetric invariant solutions are constructed via generalizing a known result for ${C}P^{N-1}$. We show that some other such solutions also exist. Indeed, considering the simplest case of $G(2,N)$ model, we give necessary and sufficient conditions for getting the constant curvature holomorphic solutions. Since, all the constant curvature holomorphic solutions of the bosonic $G(2,4)$ $σ$-model are known, we treat this example in detail.

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