We numerically investigate the statistics of avalanches in glassy systems of active particles with finite persistence, with and without an externally applied shear. In departing from the infinite-persistence limit and exploring the interplay of internal activity and external driving, we uncover when and why active and passive systems display similar avalanche statistics and where these analogies fail. We find that power-law distributed stress drops emerge only when activity builds long enough correlations, controlled by the persistence length, with exponents that vary from the purely strain-driven case, to the purely activity-driven case, in a smooth fashion. The local structure and scaling of avalanches of plastic rearrangements remains universal across both limit cases, supporting an interpretation of activity as increasing the typical size of the regions involved in a given avalanche. Our results bridge quasistatic shear strain and finite-persistence active yielding, showing that avalanches driven by self-propulsion retain the characteristic fingerprints of long-range stress propagation.
Thermal activation drives a finite-size crossover from scale-free to runaway avalanches in amorphous solids
Instituto de Física del Sur (IFISUR), Universidad Nacional del Sur (UNS), CONICET（南方物理研究所，南国立大学，阿根廷国家科学研究委员会）；Instituto de Nanociencia y Nanotecnología, CNEA–CONICET, Centro Atómico Bariloche（纳米科学与技术研究所，巴里洛切原子能委员会-阿根廷国家科学研究委员会，巴里洛切原子中心）
Dynamical Facilitation in Active Glass Formers: Role of Morphology and Persistence
Indian Institute of Technology, Madras（印度马德拉斯理工学院）；Hong Kong Baptist University（香港浸会大学）；Centro de Fisica de Materiales (CSIC, UPV/EHU)（材料物理中心（西班牙科学理事会，巴斯克国立大学））
Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam（阿姆斯特丹大学范德瓦耳斯-泽曼物理研究所）；Department of Medical Biochemistry, Amsterdam UMC University of Amsterdam（阿姆斯特丹UMC大学医学生物化学系）；Institute of Theoretical Physics, University of Amsterdam（阿姆斯特丹大学理论物理研究所）；Department of Applied Mathematics and Theoretical Physics, University of Cambridge（剑桥大学应用数学与理论物理系）
