Sánchez Ewin, Atenas Boris
Instituto de Investigación Multidisciplinario en Ciencia y Tecnología, Universidad de La Serena, La Serena 170000, Chile and Departamento de Física, Universidad de La Serena, Avenida Juan Cisternas 1200, La Serena 170000, Chile.
Departamento de Física, Facultad de Ciencias, Universidad de Tarapacá, Casilla 7-D, Arica, Chile.
Phys Rev E. 2023 Oct;108(4-1):044123. doi: 10.1103/PhysRevE.108.044123.
We found that the rare distribution of velocities in quasisteady states of the dipole-type Hamiltonian mean-field model can be explained by the Cairns-Tsallis distribution, which has been used to describe nonthermal electron populations of some plasmas. This distribution gives us two interesting parameters which allow an adequate interpretation of the output data obtained through molecular dynamics simulations, namely, the characteristic parameter q of the so-called nonextensive systems and the α parameter, which can be seen as an indicator of the number of particles with nonequilibrium behavior in the distribution. Our analysis shows that fit parameters obtained for the dipole-type Hamiltonian mean-field simulated system are ad hoc with some nonthermality and nonextensivity constraints found by different authors for plasma systems described through the Cairns-Tsallis distribution.
我们发现，偶极型哈密顿平均场模型准稳态中速度的稀有分布可以用凯恩斯- Tsallis分布来解释，该分布已被用于描述某些等离子体的非热电子群体。这种分布给出了两个有趣的参数，它们能够对通过分子动力学模拟获得的输出数据进行充分解释，即所谓非广延系统的特征参数q和α参数，α参数可以被视为分布中具有非平衡行为的粒子数量的一个指标。我们的分析表明，通过凯恩斯- Tsallis分布描述的等离子体系统，不同作者发现一些非热和非广延性约束条件，偶极型哈密顿平均场模拟系统获得的拟合参数是特定的。
