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arXiv 0711.1925hep-lathep-th
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扭曲Eguchi-Kawai模型的相结构

Phase structure of twisted Eguchi-Kawai model

Tatsuo Azeyanagi, Masanori Hanada, Tomoyoshi Hirata, Tomomi Ishikawa

摘要:

扭曲Eguchi-Kawai模型是研究大N规范理论的一个有用工具。它也可以提供非对易空间上的规范理论的非微扰公式。最近的研究发现该模型中的Z_N^4对称性在中间耦合区可以自发破缺,这对上述应用是至关重要的。在本文中,我们使用蒙特卡罗模拟来研究该模型的相结构。特别地,我们从弱耦合的角度详细地研究了对称性破缺点。模拟结果表明,该模型不能取连续极限。

英文摘要:

Twisted Eguchi-Kawai model is a useful tool for studying the large-N gauge theory. It can also provide a nonperturbative formulation of the gauge theory on noncommutative spaces. Recently it was found that the Z_N^4 symmetry in this model, which is crucial for the above applications, can break spontaneously in the intermediate coupling region. In this article, we study the phase structure of this model using the Monte-Carlo simulation. In particular, we elaborately investigate the symmetry breaking point from the weak coupling side. The simulation results show that we cannot take a continuum limit for this model.

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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