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arXiv 0706.0706hep-th
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N=4力学中线性和非线性手征多重态的共同起源

The Common Origin of Linear and Nonlinear Chiral Multiplets in N=4 Mechanics

F. Delduc, E. Ivanov

摘要:

详细阐述了以前的工作(hep-th/0605211,hep-th/0611247),我们展示了如何线性和非线性手征多重态的N=4超对称力学与离壳内容(2,4,2)可以通过衡量三个不同的双参数等距的“根”(4,4,0)多重作用。特别是,两个不同的规范群,一个阿贝尔群和一个非阿贝尔群,导致,尽管在第二种情况下是伪装的形式,相同的(唯一的)非线性手征多重态。这提供了一个证据,没有其他非线性手征N=4多重峰存在。讨论了一般西格玛模型型作用量,以及与阿贝尔规范超场有关的Fayet-Iliopoulos项的限制势项。和我们以前的工作一样,我们使用N=4,d=1调和超空间的明显超对称语言。一个新颖的观点是必须并行使用λ和τ规范框架,这两个框架之间的“桥梁”起着至关重要的作用。这是N=4调和解析性,虽然在τ框架中不明显,但产生了线性和非线性手征约束。

英文摘要:

Elaborating on previous work (hep-th/0605211, hep-th/0611247), we show how the linear and nonlinear chiral multiplets of N=4 supersymmetric mechanics with the off-shell content (2,4,2) can be obtained by gauging three distinct two-parameter isometries of the ``root'' (4,4,0) multiplet actions. In particular, two different gauge groups, one abelian and one non-abelian, lead, albeit in a disguised form in the second case, to the same (unique) nonlinear chiral multiplet. This provides an evidence that no other nonlinear chiral N=4 multiplets exist. General sigma model type actions are discussed, together with the restricted potential terms coming from the Fayet-Iliopoulos terms associated with abelian gauge superfields. As in our previous work, we use the manifestly supersymmetric language of N=4, d=1 harmonic superspace. A novel point is the necessity to use in parallel the λand τgauge frames, with the ``bridges'' between these two frames playing a crucial role. It is the N=4 harmonic analyticity which, though being non-manifest in the τframe, gives rise to both linear and nonlinear chirality constraints.

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