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arXiv 1206.2271hep-thhep-ph
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强耦合各向异性等离子体中的能量损失

Energy loss in a strongly coupled anisotropic plasma

Kazem Bitaghsir Fadafan, Hesam Soltanpanahi

摘要:

本文用全息术研究了无限大质量旋转夸克在各向异性强耦合N=4等离子体中作匀速运动时的能量损失。结果表明,类似于各向同性等离子体,旋转夸克的能量损失是由于阻力或辐射与连续的交叉从阻力为主的制度,以辐射为主的制度。我们发现各向异性对重夸克的能量损失有显著的影响,特别是在交叉区。我们认为,由于辐射在各向异性介质中的能量损失是小于各向同性的情况下。有趣的是,这与弱耦合各向异性等离子体中能量损失的类似计算相似。

英文摘要:

We study the energy loss of a rotating infinitely massive quark moving, at constant velocity, through an anisotropic strongly-coupled N=4 plasma from holography. It is shown that, similar to the isotropic plasma, the energy loss of the rotating quark is due to either the drag force or radiation with a continuous crossover from drag-dominated regime to the radiation dominated regime. We find that the anisotropy has a significant effect on the energy loss of the heavy quark, specially in the crossover regime. We argue that the energy loss due to radiation in anisotropic media is less than the isotropic case. Interestingly this is similar to analogous calculations for the energy loss in weakly coupled anisotropic plasma.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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