论文标题
背部反应对强耦合等离子体的纠缠和子区域体积复杂性的影响
Effect of back reaction on entanglement and subregion volume complexity in strongly coupled plasma
论文作者
论文摘要
大型$ n_c $上的重静态基本夸克的均匀分布强烈耦合量规理论可以全身被视为$ ADS $ Blackhole背景中的变形。背部反应的存在在有限温度下强烈耦合边界理论的纠缠结构带来了重大变化。由于变形的黑孔几何形状仍然渐近地是$ ADS $，因此$ gauge/gravility $二元性使我们能够通过计算各种措施，以定量的方式探索背部反应等离子体的纠缠结构，例如全息图纠缠熵（hee）和纠缠楔形楔形楔形部分（ewcs）。我们明确研究了这些纠缠度量的变化，相对于边界理论中存在的重静态夸克的均匀密度。特别是，我们注意到HEE和EWC在夸克密度方面的增强。我们还研究了背部反应对全息亚区域复杂性的影响。在此分析中，我们观察到与夸克密度参数成正比的对数差异的发生。
The back reaction imparted by a uniform distribution of heavy static fundamental quarks on large $N_c$ strongly coupled gauge theory can be holographically realized as a deformation in $AdS$ blackhole background. The presence of back reaction brings significant changes in to the entanglement structure of the strongly coupled boundary theory at finite temperature. Since the deformed blackhole geometry still remains asymptotically $AdS$, the $gauge/gravity$ duality allows us to explore the entanglement structure of back reacted plasma in a quantitative way by computing various measures, e.g holographic entanglement entropy (HEE) and entanglement wedge cross section (EWCS). We explicitly study the variation of those entanglement measures with respect to the uniform density of heavy static fundamental quarks present in the boundary theory. In particular, we notice enhancement of both HEE and EWCS with respect to quark density. We also study the effect of back reaction on the holographic subregion volume complexity. In this analysis we observe an occurrence of logarithmic divergence proportional to the quark density parameter.
