Generalized Statistical Mechanics and Scaling Behavior for Non-equilibrium Polymer Chains: I. Monomers Connected by Rigid Bonds

Using molecular dynamics simulation, we find that the velocity distributions of monomers in the system of non-equilibrium polymer chains and Lennard-Jones molecules in a wide range of simulation time can be well described by Tsallis $q$-statistics and a single scaling function; the value of $q$ is r...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2010-02, Vol.79 (2), p.024005-024005-6
Main Author: Ma, Wen-Jong
Format: Article
Language:English
Subjects:
Computational methods in statistical physics and nonlinear dynamics
Exact sciences and technology
Physics
Statistical physics, thermodynamics, and nonlinear dynamical systems
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Summary:Using molecular dynamics simulation, we find that the velocity distributions of monomers in the system of non-equilibrium polymer chains and Lennard-Jones molecules in a wide range of simulation time can be well described by Tsallis $q$-statistics and a single scaling function; the value of $q$ is related to the conformation constraining potential, the interactions with background fluid, or the destruction of chain homogeneity. This approach can be applied to other non-equilibrium systems.
ISSN:0031-9015
1347-4073
DOI:10.1143/JPSJ.79.024005