Mean-field theory of critical phenomenon for mutually repelling particles in complex plasmas.
Mean-field theory of critical phenomenon for mutually repelling particles in complex plasmas.
复制标题
复杂等离子体中相互排斥粒子临界现象的平均场理论。
DOI：
10.1103/physrevlett.98.095003
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发表时间：
2007
影响因子：
8.6
通讯作者：
K. Avinash
中科院分区：
文献类型：
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作者：
K. Avinash
提出了复杂等离子体中带电粒子临界的平均场理论。它示出的临界点和液体-蒸汽共存的存在是完全一致的粒子之间的纯排斥势;由于等离子体背景驱动这些的凝聚力场。临界指数，通过扩展的自由能附近的临界点计算，被发现是经典的。通过最小化吉布斯势获得的相共存曲线与其他平均场模型的相共存曲线相似，例如，货车德瓦耳斯流体，离子流体等。这些结果支持的概念，“普遍性”在广泛不同的系统。
A mean-field theory of criticality for charged particles in complex plasmas is proposed. It is shown that the existence of the critical point and the liquid-vapor coexistence is fully consistent with a purely repulsive potential between particles; the cohesive field due to the plasma background drives these. The critical exponents, calculated by expanding the free energy near the critical point, are found to be classical. The phase coexistence curve, obtained by minimizing Gibbs potential, is similar to that of other mean-field models, e.g., van der Waals fluids, ionic fluids, etc. These results lend support to the concept of "universality" in widely different systems.