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arXiv 0810.1239hep-latcond-mat.stat-mechhep-th
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淬火Eguchi-Kawai模型中大氮还原的破裂

Breakdown of large-N reduction in the quenched Eguchi-Kawai model

Barak Bringoltz, Stephen R. Sharpe

摘要:

本文研究了四维SU(N)格点规范理论与其动量猝灭模型--QEK模型之间的大N等价性。我们已经发现了强有力的证据表明,这种等价性在弱耦合区(因此在连续极限)不成立。这是基于弱耦合的分析论点和Monto-Carlo模拟在中间耦合与20 <= N <= 200。由于我们的论点,方法和结果的详细论述已经出现在物理学评论D78:034507(2008)和物理学评论D78:074503(2008),我们试图在这里给我们的结果一个更直观的解释。我们发现,减少的故障是由于动态生成的相关性之间的不同的欧几里德分量的规范场。

英文摘要:

We study the validity of the large-N equivalence between four-dimensional SU(N) lattice gauge theory and its momentum quenched version -- the Quenched Eguchi-Kawai (QEK) model. We have found strong evidence that this equivalence does not hold in the weak-coupling regime (and thus in the continuum limit). This is based on weak-coupling analytic arguments and Monto-Carlo simulations at intermediate couplings with 20 <= N <= 200. Since detailed expositions of our arguments, methods and results have already appeared in Phys. Rev. D78:034507 (2008) and Phys. Rev. D78:074503 (2008), we attempt here to give a more intuitive explanation of our results. The breakdown of reduction that we find is due to a dynamically generated correlation between different Euclidean components of the gauge fields.

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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