TY  - JOUR
AU  - Philipps, Christian
AU  - Gompper, Gerhard
AU  - Winkler, Roland G.
TI  - Dynamics of active polar ring polymers
JO  - Physical review / E
VL  - 105
IS  - 6
SN  - 2470-0045
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2022-02452
SP  - L062501
PY  - 2022
AB  - The conformational and dynamical properties of isolated semiflexible active polar ring polymers are investigated analytically. A ring is modeled as continuous Gaussian polymer exposed to tangential active forces. The analytical solution of the linear non-Hermitian equation of motion in terms of an eigenfunction expansion shows that ring conformations are independent of activity. In contrast, activity strongly affects the internal ring dynamics and yields characteristic time regimes, which are absent in passive rings. On intermediate time scales, flexible rings show an activity-enhanced diffusive regime, while semiflexible rings exhibit ballistic motion. Moreover, a second active time regime emerges on longer time scales, where rings display a snake-like motion, which is reminiscent to a tank-treading rotational dynamics in shear flow, dominated by the mode with the longest relaxation time.
LB  - PUB:(DE-HGF)16
C6  - 35854564
UR  - <Go to ISI:>//WOS:000826877900003
DO  - DOI:10.1103/PhysRevE.105.L062501
UR  - https://juser.fz-juelich.de/record/908201
ER  -