@article{39331, keywords = {Kinetics, molecular-dynamics, equation, simulations, bifurcation, free-energy, monte-carlo}, author = {Sriraman and Kevrekidis and Hummer}, title = {Coarse nonlinear dynamics and metastability of filling-emptying transitions: Water in carbon nanotubes}, abstract = {

Using a coarse-grained molecular dynamics ( CMD) approach we study the apparent nonlinear dynamics of water molecules filling or emptying carbon nanotubes as a function of system parameters. Different levels of the pore hydrophobicity give rise to tubes that are empty, water-filled, or fluctuate between these two long-lived metastable states. The corresponding coarse-grained free-energy surfaces and their hysteretic parameter dependence are explored by linking MD to continuum fixed point and bifurcation algorithms. The results are validated through equilibrium MD simulations.

}, year = {2005}, journal = {Physical Review Letters}, volume = {95}, pages = {130603}, month = {09/2005}, isbn = {0031-9007}, language = {English}, }