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arXiv 1105.3122hep-thcond-mat.stat-mechgr-qc
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有色张量模型在大N极限下的临界行为

Critical behavior of colored tensor models in the large N limit

Valentin Bonzom, Razvan Gurau, Aldo Riello, Vincent Rivasseau

摘要:

着色张量模型最近被证明允许一个大的N展开,其前导阶编码了D球的一类着色三角剖分的和。本文详细研究了这一领导秩序。我们表明,相关的三角扩散像一个物种的彩色树木。因此,首阶是可求和的,并且表现出与维数无关的临界行为。通过将耦合常数调整到其临界值,同时插入无限多对以特定方式粘合在一起的D-单形,可以达到连续极限。我们认为,占主导地位的三角形分支聚合物。

英文摘要:

Colored tensor models have been recently shown to admit a large N expansion, whose leading order encodes a sum over a class of colored triangulations of the D-sphere. The present paper investigates in details this leading order. We show that the relevant triangulations proliferate like a species of colored trees. The leading order is therefore summable and exhibits a critical behavior, independent of the dimension. A continuum limit is reached by tuning the coupling constant to its critical value while inserting an infinite number of pairs of D-simplices glued together in a specific way. We argue that the dominant triangulations are branched polymers.

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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