论文标题
在经典多体系统中,伪造的伪粒子相互作用颗粒的新兴伪时间射流
Emergent pseudo time-irreversibility in the classical many-body system of pair interacting particles
论文作者
论文摘要
在本文中,在封闭的配对相互作用颗粒的封闭经典多体系统中研究了宏观尺度伪尺度的时间 - 反射性。首先,精确的连续方程是在没有统计力学利用的情况下推导到汉密尔顿动力学的。接下来,结果表明,动量密度场在被考虑的缩放限制中融合了自由度的热度,因此初始条件表明伪时间 - 不可逆转的溶液可能存在于动态方程。提供了伪可逆的热平衡,热量和动量传输的数值证据。最后,讨论了数值获得的宏观秩序非扩张放松的可能原因。
In this paper, the emergence of macroscopic-scale pseudo time-irreversibility is studied in the closed classical many-body system of pair interacting particles. First, exact continuum equations are derived to the Hamiltonian dynamics without the utilisation of statistical mechanics. Next, it is shown that the momentum density field incorporates the thermal degrees of freedom in the considered scaling limit, and therefore initial condition indicated pseudo time-irreversible solutions may exist to the dynamical equations. Numerical evidence for pseudo-irreversible thermal equilibration, heat and momentum transport is provided. Finally, the possible reasons of the numerically obtained non-diffusional relaxation of macroscopic order is discussed.