| Autor: |
Bhadra, Satyanu, Ghosh, Shankar, Gupta, Shamik |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Phys. Rev. Research 3, 043179 (2021) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevResearch.3.043179 |
| Popis: |
We investigate the phenomenon of producing vibration-induced rotational motion in a cylinder filled with achiral rods and being vibrated by an external drive. The arrangement of the rods develops chirality as a result of the interaction of gravity and steric hindrance, which is responsible for the induced motion. A two-rod arrangement is sufficient to generate a persistent motion. The average angular velocity $\langle \omega \rangle$ of the rods at long times varies non-monotonically with the packing fraction $\phi$ for a given drive strength $\Gamma$. Though the precise nature of the variation of $\langle \omega \rangle$ with $\phi$ depends on the details of the interaction between individual rods, its general characteristics hold true for rods of various materials and geometries. A stochastic model based on the asymmetric simple exclusion process helps in understanding the key features of our experiments. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
