Work

Noise Effects in Polymer Dynamics

Year: 2008

Type: article

Abstract: The study of the noise induced effects on the dynamics of a chain molecule crossing a potential barrier, in the presence of a metastable state, is presented. A two-dimensional stochastic version of the Rouse model for a flexible polymer has been adopted to mimic the molecular dynamics and to take into account the interactions between adjacent monomers. We obtain a nonmonotonic behavior of the mean first passage time and its standard deviation, of the polymer center of inertia, with the noise intensity. These findings reveal a noise induced effect on the mean crossing time. The role of the polymer length is also investigated.

Source: International Journal of Bifurcation and Chaos

DOI: 10.1142/s0218127408022135

Authors: N. PIZZOLATO, A. FIASCONARO, B. SPAGNOLO

Institutions: National Interuniversity Consortium for the Physical Sciences of Matter, University of Palermo, Jagiellonian University

Language: English

Topic: stochastic dynamics and bifurcation

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2083368940

FWCI: 1.831

Cites: 21

Cited by: 12

Related to: