文献类型：期刊文献

英文题名：Spiral trajectories of asymmetric molecules

作者：Sheng, Nan[1];Sheng, Shiqi[2];Tu, Yu-Song[3];Wan, Rong-Zheng[4];Wang, Zuo-Wei[5];Tu, Zhanchun[6];Fang, Hai-Ping[2]

机构：[1]Shanghai Yonovate Technol Co Ltd, Shanghai 200062, Peoples R China;[2]East China Univ Sci & Technol, Sch Phys, Shanghai 200237, Peoples R China;[3]Yangzhou Univ, Coll Phys Sci & Technol, Yangzhou 225009, Jiangsu, Peoples R China;[4]Chinese Acad Sci, Shanghai Synchrotron Radiat Facil, Shanghai Adv Res Inst, Shanghai 201210, Peoples R China;[5]Univ Reading, Sch Math Phys & Computat Sci, Reading RG6 6AX, England;[6]Beijing Normal Univ, Sch Phys & Astron, Beijing 100875, Peoples R China

年份：2025

卷号：34

期号：8

外文期刊名：CHINESE PHYSICS B

收录：;EI(收录号：20253218931426);WOS:【SCI-EXPANDED(收录号:WOS:001555345500001)】；

基金：Project supported by the National Natural Science Foundation of China (Grant Nos. 12475032 and 12005062), the Supercomputing Center of the Chinese Academy of Sciences, Shanghai Snowlake Technology Co., Ltd., and the Shanghai Super-Computer Center of China.

语种：英文

外文关键词：spiral pattern; asymmetric molecule; under-damped Langevin equation; translation-rotation coupling; 05.40.Jc; 02.70.Ns; 34.10.+x

摘要：Spiral patterns widely exist in both macroscopic and microscopic systems such as hearts, bacteria, and active matters but have never been reported at molecular length scale. The emergence of spiral patterns has considerable impacts on the trajectories of the objects and thus usually relates to various physical, chemical, biological and physiological processes. In this paper, we show that, down to the length scale of only several Angstroms, asymmetric molecules exhibit spiral patterns in their trajectories within finite time based on the under-damped Langevin equation and demonstrated by molecular dynamics simulation. The key to this observation lies in the asymmetric molecular architecture that leads to a translation-rotation coupling. This finding enriches the knowledge of spiral patterns to the molecular length scale, provides a new insight into the understanding of various processes at the molecular level, and may evoke new ideas on the understanding of the vortices in turbulence.