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arXiv 0705.1924hep-thhep-lat
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1+ 1,2 +1和3+1维威尔逊圈本征值密度的匹配

Matching of Wilson loop eigenvalue densities in 1+1, 2+1 and 3+1 dimensions

Francis Bursa

摘要:

研究了SU(N)格点规范理论中威尔逊圈本征值密度的匹配:当圈迹相等时,1 + 1,2 +1和3+1维的本征值密度几乎相同.我们表明,匹配是目前至少第二阶的强耦合展开,也是第二阶微扰理论。我们发现,在连续极限有匹配的所有值的裸威尔逊圈的痕迹。我们确认数字上,有匹配这些限制,并发现有小的违规行为远离他们。我们讨论的散装过渡和非解析间隙形成在N =无穷大的2+1和3+1维的影响。

英文摘要:

We investigate the matching of eigenvalue densities of Wilson loops in SU(N) lattice gauge theory: the eigenvalue densities in 1+1, 2+1 and 3+1 dimensions are nearly identical when the traces of the loops are equal. We show that the matching is present to at least second order in the strong-coupling expansion, and also to second order in perturbation theory. We find that in the continuum limit there is matching at all values of the trace for bare Wilson loops. We confirm numerically that there is matching in these limits and find there are small violations away from them. We discuss the implications for the bulk transitions and for non-analytic gap formation at N = infinity in 2+1 and 3+1 dimensions.

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