Because of the large mass differences between electrons and ions, the heat diffusion in electron-ion plasmas exhibits more complex behavior than simple heat diffusion found in typical gas mixtures. In particular, heat is diffused in two distinct, but coupled, channels. Conventional single fluid models neglect the resulting complexity, and can often inaccurately interpret the results of heat pulse experiments. However, by recognizing the sensitivity of the electron temperature evolution to the ion diffusivity, not only can previous experiments be interpreted correctly, but informative simultaneous measurements can be made of both ion and electron heat channels.

中文翻译：

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双流体等离子体中的耦合热脉冲传播

由于电子和离子之间存在巨大的质量差异，因此与典型的气体混合物中的简单热扩散相比，电子离子等离子体中的热扩散表现出更为复杂的行为。特别地，热量在两个不同的但耦合的通道中扩散。常规的单流体模型忽略了由此产生的复杂性，并且经常会错误地解释热脉冲实验的结果。但是，通过认识到电子温度演变对离子扩散率的敏感性，不仅可以正确地解释先前的实验，而且可以同时对离子和电子热通道进行有益的同时测量。