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arXiv 0908.3713hep-th
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复二次曲面上超对称质量非线性西格玛模型中的壁

Walls in supersymmetric massive nonlinear sigma model on complex quadric surface

Masato Arai, Sunggeun Lee, Sunyoung Shin

摘要:

在三维时空中,在复二次曲面上构造了质量Kahler非线性西格玛模型的Bogomol'nyi-Prasad-Sommerfield(BPS)多壁解Q^N=SO(N+2)/[SO(N)\times SO(2)].该理论具有一个由四维时空中Q^N上的无质量非线性西格玛模型的Scherk-Schwarz降维产生的非平凡标量势,它产生2[N/2+1]个离散真空。基于模矩阵方法,得到了连接这些真空的BPS壁面解。还证明了BPS壁面解的模空间是复二次曲面Q^N。

英文摘要:

The Bogomol'nyi-Prasad-Sommerfield (BPS) multiwall solutions are constructed in a massive Kahler nonlinear sigma model on the complex quadric surface, Q^N=SO(N+2)/[SO(N)\times SO(2)] in 3-dimensional space-time. The theory has a non-trivial scalar potential generated by the Scherk-Schwarz dimensional reduction from the massless nonlinear sigma model on Q^N in 4-dimensional space-time and it gives rise to 2[N/2+1] discrete vacua. The BPS wall solutions connecting these vacua are obtained based on the moduli matrix approach. It is also shown that the moduli space of the BPS wall solutions is the complex quadric surface Q^N.

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