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arXiv 1205.4243hep-th
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非线性扭曲自对偶模型的协变作用

Covariant actions for models with non-linear twisted self-duality

Paolo Pasti, Dmitri Sorokin, Mario Tonin

摘要:

我们描述了一个系统的推广方式,非线性对偶模型的时空协变和对偶对称理论的对偶不变的制定,其中的协方差的行动是由一个单一的辅助标量场的存在下,确保。它示出的对偶对称的行动应该是不变的两个局部对称性的特点,这种方法,施加约束的形式上的行动类似的Gaillard和Zumino和非协变形式主义。我们表明,(扭曲)的自对偶条件,从这个行动后,整合其运动方程总是可以重铸在一个明显的协变形式,这是独立的辅助标量,从而对应于传统的壳对偶对称协变描述相同的模型。简要讨论了这种结构的超对称化。

英文摘要:

We describe a systematic way of the generalization, to models with non-linear duality, of the space-time covariant and duality-invariant formulation of duality-symmetric theories in which the covariance of the action is ensured by the presence of a single auxiliary scalar field. It is shown that the duality-symmetric action should be invariant under the two local symmetries characteristic of this approach, which impose constraints on the form of the action similar to those of Gaillard and Zumino and in the non-covariant formalism. We show that the (twisted) self-duality condition obtained from this action upon integrating its equations of motion can always be recast in a manifestly covariant form which is independent of the auxiliary scalar and thus corresponds to the conventional on-shell duality-symmetric covariant description of the same model. Supersymmetrization of this construction is briefly discussed.

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