Fast convergence to equilibrium for long-chain polymer melts using a MD/continuum hybrid method

TL;DR

This paper introduces a hybrid MD/continuum method that significantly accelerates the equilibration process of long-chain polymer melts by leveraging elastic continuum coupling to induce large-scale fluctuations.

Contribution

It presents a novel hybrid simulation approach that reduces equilibration time for polymer melts compared to traditional methods.

Findings

Rapid convergence to equilibrium achieved

Wide variety of chain structures generated

Simulation time drastically reduced

Abstract

Effective and fast convergence toward an equilibrium state for long-chain polymer melts is realized by a hybrid method coupling molecular dynamics and the elastic continuum. The required simulation time to achieve the equilibrium state is reduced drastically compared with conventional equilibration methods. The polymers move on a wide range of the energy landscape due to large-scale fluctuation generated by the elastic continuum. A variety of chain structures is generated in the polymer melt which results in the fast convergence to the equilibrium state.