D
EMOCRITUS
Table of Contents
Title Page
Acknowledgements
Installation notes
Introduction
How to use Democritus
Atomic Theory
About Democritus
Molecular Dynamics
What is Molecular Dynamics?
Statistical mechanics
Ensemble averages
Correlation functions
Calculating correlation functions
Fluctuations
Distribution functions
How is Molecular Dynamics done?
Newton's equations of motion
Lennard-Jones potential
Shifted force potential
Integration algorithms
Basic Verlet algorithm
Verlet Leapfrog algorithm
Velocity Verlet algorithm
Periodic boundary condition
Temperature scaling
Calculations using Molecular Dynamics
The radial distribution function (RDF)
The mean square displacement (MSD)
The mean squared dislacement and the velocity auto-correlation function
The velocity auto-correlation function (VAC)
Experiments
Temperature and Kinetic Energy
Forming a crystal
Condensation
Radial distribution function
Mean square displacement
Velocity autocorrelation function
Pressure and Density
Pressure and Temperature