N=4 SYM中的加速度和能量损失
Acceleration and Energy Loss in N=4 SYM
摘要：
我们给出了arXiv：0803.3070中得到的结果的简要概述，关于在零温度和有限温度下，强耦合N=4超杨-米尔斯中加速夸克的能量损失率。为了现象学的目的，我们的主要结果是，当一个夸克和它相应的反夸克一起在等离子体中产生时，夸克只有在q- \bar{q}分离变得大于（v-依赖性）筛选长度，从这一点上的运动是正确的描述由解析能量损失公式先前推导出的赫尔佐格等。时间近似本文是2008年10月在墨西哥粒子与场学院第十三届会议上发表的两篇演讲的略有扩充的版本。
英文摘要：
We give a brief overview of the results obtained in arXiv:0803.3070, concerning the rate of energy loss of an accelerating quark in strongly-coupled N=4 super-Yang-Mills, both at zero and finite temperature. For phenomenological purposes, our main result is that, when a quark is created within the plasma together with its corresponding antiquark, the quark starts feeling the plasma only after the q-\bar{q} separation becomes larger than the (v-dependent) screening length, and from this point on the motion is correctly described by the analytic energy loss formula previously derived by Herzog et al. and Gubser within the stationary or late-time approximations. The present text is a slightly expanded version of two talks given at the XIII Mexican School of Particles and Fields in October 2008.
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