Integrable Deformations of T-Dual σ Models.
Integrable Deformations of T-Dual σ Models.
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DOI：
10.1103/physrevlett.117.251602
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发表时间：
2016-09
影响因子：
8.6
通讯作者：
R. Borsato;L. Wulff
中科院分区：
文献类型：
--
作者：
R. Borsato;L. Wulff
本文提出了一种使二维σ模型的T_∞（一般非阿贝尔）变形的方法，它保持了经典的可积性.变形后的模型通过对偶子代数上的线性算子ω来识别，该算子满足2-上循环条件。通过场的重新定义，我们证明了当ω可逆时，所谓的齐次Yang-Baxter变形等价于我们的变形模型.我们详细解释了主手征模型T_∞的变形，并给出了相应的推广到超陪集模型的情况。
We present a method to deform (generically non-Abelian) T duals of two-dimensional σ models, which preserves classical integrability. The deformed models are identified by a linear operator ω on the dualized subalgebra, which satisfies the 2-cocycle condition. We prove that the so-called homogeneous Yang-Baxter deformations are equivalent, via a field redefinition, to our deformed models when ω is invertible. We explain the details for deformations of T duals of principal chiral models, and present the corresponding generalization to the case of supercoset models.