Process time distribution of driven polymer transport

Takuya Saito, Takahiro Sakaue

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We discuss the temporal distribution of dynamic processes in driven polymer transport inherent to flexible chains due to stochastic tension propagation. The stochasticity originates from the disordered initial configuration of an equilibrium polymer coil, which results in random paths for tension propagation. We consider the process time for when translocation occurs across a fixed pore and when stretching occurs by pulling the chain end. A scaling argument for the mean and standard deviation of the process time is provided using the two-phase picture for stochastic propagation. The two cases are found to differ remarkably. The process time distribution of the translocation exhibits substantial spreading even in the long-chain limit, unlike that found for the dynamics of polymer stretching. In addition, the process time distribution in the driven translocation is shown to have a characteristic asymmetric shape.

Original languageEnglish
Article number061803
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume85
Issue number6
DOIs
Publication statusPublished - Jun 14 2012

Fingerprint

Translocation
Polymers
polymers
Propagation
propagation
Mean deviation
temporal distribution
Stochasticity
pulling
Dynamic Process
Coil
Standard deviation
standard deviation
coils
Scaling
porosity
deviation
scaling
Path
Configuration

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

Process time distribution of driven polymer transport. / Saito, Takuya; Sakaue, Takahiro.

In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 85, No. 6, 061803, 14.06.2012.

Research output: Contribution to journalArticle

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