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| Hauptseite > Publikationsdatenbank > Internal dynamics of semiflexible polymers with active noise > print |
| Hauptseite > Publikationsdatenbank > Internal dynamics of semiflexible polymers with active noise > print |
| 001 | 829813 | ||
| 005 | 20240610120131.0 | ||
| 024 | 7 | _ | |a 10.1063/1.4981012 |2 doi |
| 024 | 7 | _ | |a 0021-9606 |2 ISSN |
| 024 | 7 | _ | |a 1089-7690 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2017-03441 |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Eisenstecken, Thomas |0 P:(DE-Juel1)164141 |b 0 |
| 245 | _ | _ | |a Internal dynamics of semiflexible polymers with active noise |
| 260 | _ | _ | |a Melville, NY |c 2017 |b American Institute of Physics |
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| 520 | _ | _ | |a The intramolecular dynamics of flexible and semiflexible polymers in response to active noise is studied theoretically. The active noise may either originate from interactions of a passive polymer with a bath of active Brownian particles or the polymer itself is comprised of active Brownian particles. We describe the polymer by the continuous Gaussian semiflexible-polymer model, taking into account the finite polymer extensibility. Our analytical calculations predict a strong dependence of the polymer dynamics on the activity. In particular, active semiflexible polymers exhibit a crossover from a bending elasticity-dominated dynamics at weak activity to that of flexible polymers at strong activity. The end-to-end vector correlation function decays exponentially for times longer than the longest polymer relaxation time. Thereby, the polymer relaxation determines the decay of the correlation function for long and flexible polymers. For shorter and stiffer polymers, the relaxation behavior of individual active Brownian particles dominates the decay above a certain activity. The diffusive dynamics of a polymer is substantially enhanced by the activity. Three regimes can be identified in the mean square displacement for sufficiently strong activities: an activity-induced ballistic regime at short times, followed by a Rouse-type polymer-specific regime for any polymer stiffness, and free diffusion at long times, again determined by the activity. |
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| 700 | 1 | _ | |a Gompper, Gerhard |0 P:(DE-Juel1)130665 |b 1 |u fzj |
| 700 | 1 | _ | |a Winkler, Roland G. |0 P:(DE-Juel1)131039 |b 2 |
| 773 | _ | _ | |a 10.1063/1.4981012 |g Vol. 146, no. 15, p. 154903 - |0 PERI:(DE-600)1473050-9 |n 15 |p 154903 |t The journal of chemical physics |v 146 |y 2017 |x 1089-7690 |
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