Numerical simulation of ultracold plasmas: how rapid intrinsic heating limits the development of correlation.
Numerical simulation of ultracold plasmas: how rapid intrinsic heating limits the development of correlation.
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DOI：
10.1103/physrevlett.88.065003
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发表时间：
2002-01
影响因子：
8.6
通讯作者：
S. G. Kuzmin;T. M. O'Neil
中科院分区：
文献类型：
--
作者：
S. G. Kuzmin;T. M. O'Neil
在最近的实验中，超冷等离子体是通过光致电离激光冷却原子的小云产生的。这表明，这些新的等离子体的低初始温度直接导致强关联和秩序。相比之下，我们认为，快速的内在加热提高电子温度的点，强相关性不能发展。这一论点得到了早期等离子体演化的分子动力学模拟的证实。
In recent experiments, ultracold plasmas were produced by photoionizing small clouds of laser-cooled atoms. It has been suggested that the low initial temperature of these novel plasmas leads directly to strong correlation and order. In contrast, we argue that rapid intrinsic heating raises the electron temperature to the point where strong correlation cannot develop. The argument is corroborated by a molecular-dynamics simulation of the early-time plasma evolution.