二维强耦合尘埃团的热输运
Heat Transport in Confined Strongly Coupled 2D Dust Clusters
摘要：
尘埃等离子体是研究强关联的模型系统。尘埃颗粒的几微米大小和几赫兹的特征振荡频率允许在原子水平上研究许多粒子效应。在这篇文章中，我们模拟了通过轴向限制的2D尘埃团从中心到外部的热传输。该系统表现得特别有趣，因为热量不仅在粉尘成分内传导，而且还传递到中性气体。将解析解拟合到所获得的径向温度分布允许确定导热率$\kheat$。发现热导率在很宽的耦合强度范围内是恒定的，甚至包括此处从固体到液体的相变，正如V.Nosenko等人在2008年\cite{PhysRevLett.100.025003}在扩展系统中也发现的那样
英文摘要：
Dusty plasmas are a model system for studying strong correlation. The dust grains' size of a few micro-meters and their characteristic oscillation frequency of a few hertz allows for an investigation of many particle effects on an atomic level. In this article, we model the heat transport through an axially confined 2D dust cluster from the center to the outside. The system behaves particularly interesting since heat is not only conducted within the dust component but also transfered to the neutral gas. Fitting the analytical solution to the obtained radial temperature profiles allows to determine the heat conductivity $\kheat$. The heat conductivity is found to be constant over a wide range of coupling strengths even including the phase transition from solid to liquid here, as it was also found in extended systems by V. Nosenko et al. in 2008 \cite{PhysRevLett.100.025003}
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