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arXiv 1107.3779hep-th
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半局域非阿贝尔弦低能理论的量子动力学

Quantum Dynamics of Low-Energy Theory on Semilocal Non-Abelian Strings

Peter Koroteev, Mikhail Shifman, Walter Vinci, Alexei Yung

摘要:

最近,在场论arXiv:1104.2077中得到了一个关于具有U(N)规范群和N + \tilde{N}夸克味的SQCD中非阿贝尔半局域涡旋的低能有效理论.在一定的红外截止值范围内,计算结果是准确的。由此产生的模型被称为zn模型。我们详细研究了zn模型的量子动力学。首先,我们在大N的情况下以前导顺序求解它。然后,我们将我们的结果与Hanany和Tong hep-th/0403158(HT模型)的结果进行比较,他们的推导基于某种IIA型形式主义,而不是基于场论结构。在无穷N的t Hooft极限下,两个模型的预测是相同的。在有限N时,我们的计算只在BPS扇区与Hanany-Tong的结果一致。除了BPS部门之外,锌和HT模型之间没有达成一致。最后,我们从不同的角度研究了zn模型的微扰理论。

英文摘要:

Recently a low-energy effective theory on non-Abelian semilocal vortices in SQCD with the U(N) gauge group and N + \tilde{N} quark flavors was obtained in field theory arXiv:1104.2077. The result is exact in a certain limit of large infrared cut-off. The resulting model was called the zn model. We study quantum dynamics of the zn model in some detail. First we solve it at large N in the leading order. Then we compare our results with those of Hanany and Tong hep-th/0403158 (the HT model) who based their derivation on a certain type-IIA formalism, rather than on a field-theory construction. In the 't Hooft limit of infinite N both model's predictions are identical. At finite N our calculations agree with the Hanany-Tong results only in the BPS sector. Beyond the BPS sector there is no agreement between the zn and HT models. Finally, we study perturbation theory of the zn model from various standpoints.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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