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arXiv 0910.0637hep-thcond-mat.stat-mech
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二维OSP(2)中的散射和对偶性|2)Gross Neveu和西格玛模型

Scattering and duality in the 2 dimensional OSP(2|2) Gross Neveu and sigma models

H. Saleur, B. Pozsgay

摘要:

我们写出了大质量OSp(2)的热力学Bethe公式|2)Gross Neveu模型和西格玛模型。证明了Bassi和Leclair [12]提出的GN-S矩阵是正确的.我们确定的西格玛模型S矩阵,这似乎是非常非常规的功能,我们推测特别是这个西格玛模型和复杂的正弦-戈登模型之间的关系在一个特定的值的耦合。我们发现了一个有趣的二元性之间的操作系统p(2| 2)GN(resp. sigma)模型,以及SO(4)sigma(resp. GN模型),在某种程度上推广到大规模的情况下,最近的结果对OSp(4| 2)。最后,我们将(的超对称版本)流的TBA写入Cabra等人[39]提出的随机键伊辛模型中,并得出他们的S矩阵不正确的结论。

英文摘要:

We write the thermodynamic Bethe ansatz for the massive OSp(2|2) Gross Neveu and sigma models. We find evidence that the GN S matrix proposed by Bassi and Leclair [12] is the correct one. We determine features of the sigma model S matrix, which seem highly unconventional; we conjecture in particular a relation between this sigma model and the complex sine-Gordon model at a particular value of the coupling. We uncover an intriguing duality between the OSp(2|2) GN (resp. sigma) model on the one hand, and the SO(4) sigma (resp. GN model) on the other, somewhat generalizing to the massive case recent results on OSp(4|2). Finally, we write the TBA for the (SUSY version of the) flow into the random bond Ising model proposed by Cabra et al. [39], and conclude that their S matrix cannot be correct.

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