Abstract

Relativistic hydrodynamics represents a powerful tool to investigate the time evolution of the strongly interacting quark gluon plasma created in ultrarelativistic heavy ion collisions. The equations are solved often numerically, and numerous analytic solutions also exist. However, the inclusion of viscous effects in exact, analytic solutions has received less attention. Here we utilize Hubble flow to investigate the role of bulk viscosity, and present different classes of exact, analytic solutions valid also in the presence of dissipative effects.

中文翻译：

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粘性相对论流体力学的新解

摘要

相对论流体动力学是研究在超相对论重离子碰撞中产生的强相互作用夸克胶子等离子体的时间演化的有力工具。这些方程经常通过数值求解，并且还存在许多解析解。但是，在精确的分析解决方案中包含粘性效应的关注较少。在这里，我们利用哈勃流来研究体积粘度的作用，并提出了不同类别的精确解析溶液，这些解在存在耗散效应的情况下也有效。