Entanglement entropy, dualities, and deconfinement in gauge theories

Entanglement entropy, dualities, and deconfinement in gauge theories
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规范理论中的纠缠熵、对偶性和解禁闭

DOI:
10.1007/jhep08(2018)175
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发表时间:
2018
影响因子:
5.4
通讯作者:
Kolligs, Benjamin J.
Kolligs, Benjamin J.
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Anber, Mohamed M.;Kolligs, Benjamin J.

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在约束规范理论中计算纠缠熵常常伴随着困惑和歧义。在这项工作中,我们表明,紧致的理论上的一个小circleevades这些困难。特别地,我们研究了具有双迹形变或伴随费米子的Yang-Mills理论,并将其保持在解除禁闭跃迁附近的温度。这个理论是一个多组分(电磁)库仑气体的对偶,可以映射到一个XY-自旋模型与保自旋微扰或对偶Sine-Gordon模型。对偶Sine-Gordon模型的纠缠熵在临界温度/交叉点处出现极值。我们还通过复制技巧和蒙特卡罗模拟计算了XY自旋模型的Rényi互信息(RMI)。这些是昂贵的计算,因为通常需要抑制不对应于系统的物理激励的较低绕组涡流。我们使用的T-对偶映射的原始XY模型,其镜像,使RMI的提取一个更有效的过程。我们的模拟表明,RMI遵循面积定律标度,与subleading修正,这个量可以作为一个真正的探针来检测解除禁闭过渡。我们还讨论了基本物质对RMI的影响,以及我们的研究结果在规范理论和超越的影响。
Computing the entanglement entropy in confining gauge theories is often accompanied by puzzles and ambiguities. In this work we show that compactifying the theory on a small circleevades these difficulties. In particular, we study Yang-Mills theory onwith double-trace deformations or adjoint fermions and hold it at temperatures near the deconfinement transition. This theory is dual to a multi-component (electric-magnetic) Coulomb gas that can be mapped either to an XY-spin model with ℤ p symmetry-preserving perturbations or dual Sine-Gordon model. The entanglement entropy of the dual Sine-Gordon model exhibits an extremum at the critical temperature/crossover. We also compute Rényi mutual information (RMI) of the XY-spin model by means of the replica trick and Monte Carlo simulations. These are expensive calculations, since one in general needs to suppress lower winding vortices that do not correspond to physical excitations of the system. We use a T-duality that maps the original XY model to its mirror image, making the extraction of RMI a much efficient process. Our simulations indicate that RMI follows the area law scaling, with subleading corrections, and this quantity can be used as a genuine probe to detect deconfinement transitions. We also discuss the effect of fundamental matter on RMI and the implications of our findings in gauge theories and beyond.
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