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arXiv 1604.06381hep-thcond-mat.stat-mechmath-phmath.MP
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Douglas-Kazakov转变的两面:从Yang-Mills理论到随机游动及以后

Two faces of Douglas-Kazakov transition: from Yang-Mills theory to random walks and beyond

Alexander Gorsky, Alexey Milekhin, Sergei Nechaev

摘要:

受二维Yang-Mills(YM)理论与(1+1)维“恶性行走”(VW)理论联系的启发,我们考虑了大$N$ Douglas-Kazakov(DK)相变在规范场理论和随机过程中的不同体现,并着重讨论了可能的物理解释.我们推广了YM和VW之间的联系,研究了Walkers的初始和最终分布对DK相变的影响,并描述了相应随机过程中的$θ$项的作用.考虑了具有Calogero型相互作用的Jack随机过程,研究了DK跃迁点对一个耦合常数的依赖性.根据大$N$二维$q$ -YM与具有大$N$磁荷的极端黑洞(BH)之间的关系,我们推测了四维极端带电BH中DK相变的物理解释.

英文摘要:

Being inspired by the connection between 2D Yang-Mills (YM) theory and (1+1)D "vicious walks" (VW), we consider different incarnations of large-$N$ Douglas-Kazakov (DK) phase transition in gauge field theories and stochastic processes focusing at possible physical interpretations. We generalize the connection between YM and VW, study the influence of initial and final distributions of walkers on the DK phase transition, and describe the effect of the $θ$-term in corresponding stochastic processes. We consider the Jack stochastic process involving Calogero-type interaction between walkers and investigate the dependence of DK transition point on a coupling constant. Relying on the relation between large-$N$ 2D $q$-YM and extremal black hole (BH) with large-$N$ magnetic charge, we speculate about a physical interpretation of a DK phase transitions in a 4D extremal charged BH.

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