Автор |
Wada, H. |
Автор |
Netz, R. R. |
Дата выпуска |
2009-08-01 |
dc.description |
The torsional dynamics of a semiflexible polymer with a contour length L larger than its persistence length L<sub>p</sub> that is rotated at fixed frequency ω<sub>0</sub> at one end is studied by scaling arguments and hydrodynamic simulations. We find a non-equilibrium transition at a critical frequency ω<sub>*</sub>: In the linear regime, ω<sub>0</sub><ω<sub>*</sub>, axial spinning is the dominant dissipation mode. In the non-linear regime, ω<sub>0</sub>>ω<sub>*</sub>, the twist dissipation mode involves the continuous creation of plectonemes close to the driven end and the rotational friction is substantially reduced. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Копирайт |
Europhysics Letters Association |
Название |
Plectoneme creation reduces the rotational friction of a polymer |
Тип |
lett |
DOI |
10.1209/0295-5075/87/38001 |
Electronic ISSN |
1286-4854 |
Print ISSN |
0295-5075 |
Журнал |
EPL (Europhysics Letters) |
Том |
87 |
Первая страница |
38001 |
Последняя страница |
38006 |
Аффилиация |
Wada, H.; Yukawa Institute for Theoretical Physics, Kyoto University - Kyoto 606-8502, Japan |
Аффилиация |
Netz, R. R.; Department of Physics, Technical University Munich - 85748 Garching, Germany, EU |
Выпуск |
3 |