Thermal phase transition in Yang-Mills matrix model

Thermal phase transition in Yang-Mills matrix model
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Yang-Mills 矩阵模型中的热相变

DOI:
10.1007/jhep01(2020)053
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发表时间:
2020
影响因子:
5.4
通讯作者:
Bergner G
Bergner G
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Bergner G

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我们研究了作为二维最大超对称SU(N)Yang-Mills理论高温极限的玻色子矩阵模型。到目前为止,对于这一理论中退禁闭转变的顺序还没有达成共识,这阻碍了从规范/引力二象性的角度理解黑洞/黑弦拓扑变化的性质的进展。一方面,前人的工作认为退禁闭相变与二阶和三阶相变是一致的。另一方面,最近提出了一级转变的证据。我们在大N和小晶格间距下进行了高统计量的晶格蒙特卡罗模拟,以确定该跃迁确实是一阶的。我们的发现标志着一个警告,即在早期的出版物中可能没有达到所需的大N和连续统限制,这就是差异的来源。此外,我们的详细结果证实了一个新的部分解禁闭相的存在,它通过规范/引力对偶来描述非均匀黑弦。这一阶段展示了量子场论中已经预言的普遍特征。
We study the bosonic matrix model obtained as the high-temperature limit of two-dimensional maximally supersymmetric SU (N) Yang-Mills theory. So far, no consensus about the order of the deconfinement transition in this theory has been reached and this hinders progress in understanding the nature of the black hole/black string topology change from the gauge/gravity duality perspective. On the one hand, previous works considered the deconfinement transition consistent with two transitions which are of second and third order. On the other hand, evidence for a first order transition was put forward more recently. We perform high-statistics lattice Monte Carlo simulations at large N and small lattice spacing to establish that the transition is really of first order. Our findings flag a warning that the required large-N and continuum limit might not have been reached in earlier publications, and that was the source of the discrepancy. Moreover, our detailed results confirm the existence of a new partially deconfined phase which describes non-uniform black strings via the gauge/gravity duality. This phase exhibits universal features already predicted in quantum field theory.
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