Coupling of transverse and longitudinal response in stiff polymers

Details Coupling of transverse and longitudinal response in stiff polymers Coupling of transverse and longitudinal response in stiff polymers

2007-04-24

arxiv.org/abs/0704.3223v2

Phys. Rev. Lett. 99 (2007) 098302

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 3 figures, 1 table; final version

Scientific paper

10.1103/PhysRevLett.99.098302

The time-dependent transverse response of stiff polymers, represented as weakly-bending wormlike chains (WLCs), is well-understood on the linear level, where transverse degrees of freedom evolve independently from the longitudinal ones. We show that, beyond a characteristic time scale, the nonlinear coupling of transverse and longitudinal motion in an inextensible WLC significantly weakens the polymer response compared to the widely used linear response predictions. The corresponding feedback mechanism is rationalized by scaling arguments and quantified by a multiple scale approach that exploits an inherent separation of transverse and longitudinal correlation length scales. Crossover scaling laws and exact analytical and numerical solutions for characteristic response quantities are derived for different experimentally relevant setups. Our findings are applicable to cytoskeletal filaments as well as DNA under tension.

Affiliated with

Also associated with

No associations

Rating

Coupling of transverse and longitudinal response in stiff polymers does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Coupling of transverse and longitudinal response in stiff polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coupling of transverse and longitudinal response in stiff polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-225782