论文标题
$ {1D} $自我磨损系统的长期放松
Long-term relaxation of ${1D}$ self-gravitating systems
论文作者
论文摘要
我们使用动力学理论和$ n $ body模拟研究了一维（$ {1D} $）自我散发系统的长期放松。我们考虑有和没有集体效应的热和掉线平衡。发现所有组合都与Balescu-Lenard和Landau预测扩散系数有关。有趣的是，集体效应减少了因子$ {\ sim 10} $的扩散。 Plummer平衡的预测通量与测量的通量相匹配，这是动力学理论的显着验证。我们还报告了针对相同平衡的准动力学阻断的情况。
We investigate the long-term relaxation of one-dimensional (${1D}$) self-gravitating systems, using both kinetic theory and $N$-body simulations. We consider thermal and Plummer equilibria, with and without collective effects. All combinations are found to be in clear agreement with respect to the Balescu-Lenard and Landau predictions for the diffusion coefficients. Interestingly, collective effects reduce the diffusion by a factor ${\sim 10}$. The predicted flux for Plummer equilibrium matches the measured one, which is a remarkable validation of kinetic theory. We also report on a situation of quasi kinetic blocking for the same equilibrium.
