论文标题
从广告/CFT上强烈耦合重和轻夸克热运动
Strongly Coupled Heavy and Light Quark Thermal Motion from AdS/CFT
论文作者
论文摘要
我们使用ADS/CFT对应关系对热等离子体中的沉重和轻探针进行教学表现。考虑了三种情况：外部重和轻夸克在血浆中进行布朗运动，而外部重夸克则以恒定的速度在血浆中移动。在前两种情况下，我们计算字符串边界端点的于点横向位移。在早期，行为是弹道的，而较晚的动态是扩散的。我们在任意数量的维度中提取重量和光夸克的扩散系数，并就相对论重离子现象学的相关性发表评论。
We give a pedagogical presentation of heavy and light probe quarks in a thermal plasma using the AdS/CFT correspondence. Three cases are considered: external heavy and light quarks undergoing Brownian motion in the plasma, and an external heavy quark moving through the plasma with a constant velocity. For the first two cases we compute the mean-squared transverse displacement of the string's boundary endpoint. At early times the behaviour is ballistic, while the late time dynamics are diffusive. We extract the diffusion coefficient for both heavy and light quarks in an arbitrary number of dimensions and comment on the relevance for relativistic heavy ion phenomenology.
