论文标题
全息QCD中的霍尔液滴板
Hall Droplet Sheets in Holographic QCD
论文作者
论文摘要
在单料QCD中，无法使用Baryons的低能量描述。在这种情况下，Komargodski提出了Baryons可以看作是类型的带电量子厅液滴或“床单”。在本文中，我们提出了单料全息QCD的弦理论描述，重点是Witten-Sakai-Sugimoto模型。这些床单具有由D6-branes描述的“硬” gluonic芯和一个“软”的中壳，是双至非平凡的D8-Brane仪表轨道配置。我们首先提供了一个无限扩展的纸张，上面有无质量或中等的夸克。然后，我们构造了一个半无限的纸，在一维边界上结束一个“涡旋字符串”。全息描述允许精确计算床单。特别是，我们计算纸和涡旋字符串的张力和厚度，并提供四个维度的有效动作。
In single-flavor QCD, the low energy description of baryons as Skyrmions is not available. In this case, it has been proposed by Komargodski that baryons can be viewed as kinds of charged quantum Hall droplets, or "sheets". In this paper we propose a string theory description of the sheets in single-flavor holographic QCD, focusing on the Witten-Sakai-Sugimoto model. The sheets have a "hard" gluonic core, described by D6-branes, and a "soft" mesonic shell, dual to non-trivial D8-brane gauge field configurations. We first provide the description of an infinitely extended sheet with massless or moderately massive quarks. Then, we construct a semi-infinite sheet ending on a one-dimensional boundary, a "vortex string". The holographic description allows for the precise calculation of sheet observables. In particular, we compute the tension and thickness of the sheet and the vortex string, and provide their four dimensional effective actions.
