论文标题
具有指数衰减的排斥对相互作用电位的颗粒的插度堵塞与玻璃状动力学
Athermal Jamming vs. glassy dynamics for particles with exponentially decaying repulsive pair interaction potentials with a cutoff
论文作者
论文摘要
我们研究了由球体组成的系统中的Athermal Chamming以及根据距离的反相互作用而相互作用的系统中的热玻璃动力学。像往常一样，模拟中使用了截止。尽管发现通过试图去除重叠来确定的无障碍过渡取决于截止的任意选择，因此未发现任何仅依赖于物理衰减长度的截止性转变或交叉。相反，玻璃动力学主要取决于衰减长度。我们的发现构成了另一个证明，表明Athermal Jamming转变与热玻璃动力学无关。此外，我们认为，没有急剧截止的相互作用应更频繁地作为保障模型系统。通过探索在干扰领域中进行广泛使用的理论方法或分析方法，必须更改以不依赖非物理截止，从而导致对雅典和热堵塞的本质有更深入的见解。
We study athermal jamming as well as the thermal glassy dynamics in systems composed of spheres that interact according to repulsive interactions that exponentially decay as a function of distance. As usual, a cutoff is employed in the simulations. While the athermal jamming transition that is determined by trying to remove overlaps is found to depend on the arbitrary and therefore unphysical choice of the cutoff, we do not find any athermal jamming transition or crossover that only relies on the physical decay length. In contrast, the glassy dynamics mainly depends on the decay length. Our findings constitute another demonstration of the fact that the athermal jamming transition is not related to thermal glassy dynamics. In addition, we argue that interactions without sharp physical cutoff should be considered more often as a model system in jamming. By exploring how widely-used theoretical approaches or methods of analysis in the field of jamming have to be changed in order to not depend on unphysical cutoffs will lead to deeper insights into the nature of athermal and thermal jamming.
