Local Rotational Jamming and Multi-Stage Hyperuniformities in an Active Spinner System  

作　　者：刘锐 巩建晓 杨明成 陈科 Rui Liu;Jianxiao Gong;Mingcheng Yang;Ke Chen(Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;National Center for Nanoscience and Technology,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China;School of Nanoscience and Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]Beijing National Laboratory for Condensed Matter Physics and CAS Key Laboratory of Soft Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [2]National Center for Nanoscience and Technology,Beijing 100190,China [3]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China [4]School of Nanoscience and Engineering,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics Letters》2023年第12期104-108,共5页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 11774393, 11404378, 12274448, 22272040, and T2325027);Youth Innovation Promotion Association of CAS (Grant No. 2017014);the National Key R&D Program of China (Grant Nos. 2022YFF0503504 and 2022YFA1203200)。

摘　　要：An active system consisting of many self-spinning dimers is simulated, and a distinct local rotational jamming transition is observed as the density increases. In the low density regime, the system stays in an absorbing state,in which each dimer rotates independently subject to the applied torque;while in the high density regime,a fraction of the dimers become rotationally jammed into local clusters, and the system exhibits microphaseseparation like two-phase morphologies. For high enough densities, the system becomes completely jammed in both rotational and translational degrees of freedom. Such a simple system is found to exhibit rich and multiscale disordered hyperuniformities among the above phases: the absorbing state shows a critical hyperuniformity of the strongest class and subcritically preserves the vanishing density fluctuation scaling up to some length scale;the locally jammed state shows a two-phase hyperuniformity conversely beyond some length scale with respect to the phase cluster sizes;the totally jammed state appears to be a monomer crystal, but intrinsically loses large-scale hyperuniformity. These results are inspiring for designing novel phase-separation and disordered hyperuniform systems through dynamical organization.

关 键 词：UNIFORM SYSTEM ROTATIONAL 

分 类 号：O469[理学—凝聚态物理]