| Autor: |
Lin G; School of Systems Science, Beijing Normal University, Beijing 100875, People's Republic of China., Han Z; School of Systems Science, Beijing Normal University, Beijing 100875, People's Republic of China., Shee A; Northwestern Institute on Complex Systems and ESAM, Northwestern University, Evanston, Illinois 60208, USA., Huepe C; School of Systems Science, Beijing Normal University, Beijing 100875, People's Republic of China.; Northwestern Institute on Complex Systems and ESAM, Northwestern University, Evanston, Illinois 60208, USA.; CHuepe Labs, 2713 West August Boulevard No. 1, Chicago, Illinois 60622, USA. |
| Abstrakt: |
We report and characterize the emergence of a noise-induced state of quenched disorder in a generic model describing a dense sheet of active polar disks. In this state, self-propelled disks become jammed with random orientations, only displaying small fluctuations about their mean positions and headings. The quenched disorder phase appears at intermediate noise levels, between moving polar order and standard dynamic disorder. We show that it results from retrograde forces produced by angular fluctuations with Ornstein-Uhlenbeck dynamics, compute its critical noise, and argue that it could emerge in a variety of systems. |
