中国物理B ›› 2021, Vol. 30 ›› Issue (6): 66101-066101.doi: 10.1088/1674-1056/abefc5
Zhenhuan Xu(徐震寰)1, Rui Wang(王瑞)1, Jiamei Cui(崔佳梅)1, Yanjun Liu(刘彦君)1, and Wen Zheng(郑文)1,2,†
Zhenhuan Xu(徐震寰)1, Rui Wang(王瑞)1, Jiamei Cui(崔佳梅)1, Yanjun Liu(刘彦君)1, and Wen Zheng(郑文)1,2,†
摘要: Enormous progresses to understand the jamming transition have been driven via simulating purely repulsive particles which were somehow idealized in the past two decades. While the attractive systems are both theoretical and practical compared with repulsive systems. By studying the statistics of rigid clusters, we find that the critical packing fraction φc varies linearly with attraction μ for different system sizes when the range of attraction is short. While for systems with long-range attractions, however, the slope of φc appears significantly different, which means that there are two distinct jamming scenarios. In this paper, we focus our main attention on short-range attractions scenario and define a new quantity named "short-range attraction susceptibility" χp, which describes the degree of response of the probability of finding jammed states pj to short-range attraction strength μ. Our central results are that χp diverges in the thermodynamic limit as χp ∝|φ-φc∞|-γp, where φc∞ is the packing fraction at the jamming transition for the infinite system in the absence of attraction. χp obeys scaling collapse with a scaling function in both two and three dimensions, illuminating that the jamming transition can be considered as a phase transition as proposed in previous work.
中图分类号: (Structural modeling: serial-addition models, computer simulation)