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arXiv 0911.0358hep-thhep-lat
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关于大N体积独立性的评论

Comments on large-N volume independence

Erich Poppitz, Mithat Unsal

摘要:

我们研究了R**3 x L**G上的大N体积无关性,其中L**G是具有伴随Wilson费米子的Yang-Mills理论的G格点。我们发现的临界数量的晶格网站以上的中心对称性分析L**G同意一个连续S**1。当Wilson参数设为1且G>=2时,两种分析结果一致。威尔逊线质量的单圈辐射修正是有限的,这让人想起解构/小希格斯理论中希格斯质量的紫外不敏感性。即使对于G=1的理论,通过调整一个低能有效场论参数,也可以保证QCD(adj)中的体积无关性。在该理论的参数空间内,最多有三个三维有效场论算子表现出单圈紫外敏感性。这为用低维场论(在我们的例子中d=3)研究四维非微扰物理开辟了分析前景。

英文摘要:

We study aspects of the large-N volume independence on R**3 x L**G, where L**G is a G-site lattice for Yang-Mills theory with adjoint Wilson-fermions. We find the critical number of lattice sites above which the center-symmetry analysis on L**G agrees with the one on the continuum S**1. For Wilson parameter set to one and G>=2, the two analyses agree. One-loop radiative corrections to Wilson-line masses are finite, reminiscent of the UV-insensitivity of the Higgs mass in deconstruction/Little-Higgs theories. Even for theories with G=1, volume independence in QCD(adj) may be guaranteed to work by tuning one low-energy effective field theory parameter. Within the parameter space of the theory, at most three operators of the 3d effective field theory exhibit one-loop UV-sensitivity. This opens the analytical prospect to study 4d non-perturbative physics by using lower dimensional field theories (d=3, in our example).

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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