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Unwinding relaxation dynamics of polymers
- Source :
- Phys. Rev. Lett. 110, 068301 (2013)
- Publication Year :
- 2013
-
Abstract
- The relaxation dynamics of a polymer wound around a fixed obstacle constitutes a fundamental instance of polymer with twist and torque and it is of relevance also for DNA denaturation dynamics. We investigate it by simulations and Langevin equation analysis. The latter predicts a relaxation time scaling as a power of the polymer length times a logarithmic correction related to the equilibrium fluctuations of the winding angle. The numerical data support this result and show that at short times the winding angle decreases as a power-law. This is also in agreement with the Langevin equation provided a winding-dependent friction is used, suggesting that such reduced description of the system captures the basic features of the problem.<br />Comment: 4 pages, 5 figures. Accepted for publication in Phys. Rev. Lett
- Subjects :
- Condensed Matter - Soft Condensed Matter
Condensed Matter - Statistical Mechanics
Subjects
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 110, 068301 (2013)
- Publication Type :
- Report
- Accession number :
- edsarx.1301.2777
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.110.068301