Negative temperature states for the two-dimensional guiding-centre plasma
Negative temperature states for the two-dimensional guiding-centre plasma
复制标题
DOI：
10.1017/s0022377800007686
复制
发表时间：
1973-08
影响因子：
2.5
通讯作者：
G. Joyce;D. Montgomery
中科院分区：
文献类型：
--
作者：
G. Joyce;D. Montgomery
给出了具有正总相互作用能的二维静电导心等离子体的理论发展和数值模拟。平衡统计力学预言，该系统不存在空间均匀的热平衡态。这种不存在与“负温度”现象有关。准稳定的、空间上不均匀的状态被证明是形成的，并且以宏观的空间分离的涡旋结构为特征。
Theoretical development and numerical simulation of the two-dimensional electrostatic guiding-centre plasma with positive total interaction energy are presented. Equilibrium statistical mechanics predicts that no spatially homogeneous thermal equilibrium state exists for this system. This non-existence is associated with the phenomenon of ‘negative temperatures’. Quasi-stable, spatially inhomogeneous states are shown to form, and are characterized by macroscopic spatially-separated vortex structures.