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arXiv 0910.4526hep-thcond-mat.stat-mechhep-lat
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一维大N规范理论在1/D展开中的位相

Phases of one dimensional large N gauge theory in a 1/D expansion

Gautam Mandal, Manavendra Mahato, Takeshi Morita

摘要:

本文研究了d维伴随标量场的大N杨米尔斯理论,其中d=0或1.我们证明了存在一个非平凡的鞍点的功能性积分在大D,其特征在于伴随标量的质量差距。我们在鞍点周围的1/D展开中积分出伴随标量。在一维被视为一个圆的情况下,这个过程导致威尔逊线的有效作用。我们发现一个类似的限制/解除限制的过渡,其中包括一个二阶相变从一个均匀的到一个非均匀的本征值分布的威尔逊线,紧随其后的格罗斯-威滕-瓦迪亚过渡的间隙发展中的本征值分布。这种相变可以看作是Gregory-Laflamme相变的延续。我们的方法涉及大的无量纲的tHooft耦合值。本文的分析是定量支持早期的数值工作D=9。

英文摘要:

We consider large N Yang Mills theory with D adjoint scalar fields in d dimensions for d=0 or 1. We show the existence of a non-trivial saddle point of the functional integral at large D which is characterized by a mass gap for the adjoint scalars. We integrate out the adjoint scalars in a 1/D expansion around the saddle point. In case of one dimension which is regarded as a circle, this procedure leads to an effective action for the Wilson line. We find an analogue of the confinement/deconfinement transition which consists of a second order phase transition from a uniform to a non-uniform eigenvalue distribution of the Wilson line, closely followed by a Gross-Witten-Wadia transition where a gap develops in the eigenvalue distribution. The phase transition can be regarded as a continuation of a Gregory-Laflamme transition. Our methods involve large values of the dimensionless 'tHooft coupling. The analysis in this paper is quantitatively supported by earlier numerical work for D=9.

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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