# Event-driven molecular dynamics

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**Event-driven molecular dynamics** is often used to simulate hard or piecewise continuous models (rather than the more familiar *time-driven* molecular dynamics used for soft models). An example of an *event* is a collision. One of the first examples of the use of such an algorithm was in the study of hard disks in 1959 ^{[1]}.
The application of event-driven molecular dynamics to non-circular/spherical particles is substantially more challenging ^{[2]}

## See also[edit]

- DYNAMO an open-source event-driven simulation code written by Dr. Marcus Bannerman

## References[edit]

- ↑ B. J. Alder and T. E. Wainwright "Studies in Molecular Dynamics. I. General Method", Journal of Chemical Physics
**31**pp. 459-466 (1959) - ↑ Aleksandar Donev, Salvatore Torquato and Frank H. Stillinger "Neighbor list collision-driven molecular dynamics simulation for nonspherical hard particles. I. Algorithmic details", Journal of Computational Physics
**202**pp. 737-764 (2005)

**Related reading**

- Aleksandar Donev, Salvatore Torquato and Frank H. Stillinger "Neighbor list collision-driven molecular dynamics simulation for nonspherical hard particles.: II. Applications to ellipses and ellipsoids", Journal of Computational Physics
**202**pp. 765-793 (2005) - Marcus N. Bannerman and Leo Lue "Exact on-event expressions for discrete potential systems", Journal of Chemical Physics
**133**124506 (2010) - Thorsten Pöschel and Thomas Schwager "Computational Granular Dynamics: Models and Algorithms", Springer Berlin Heidelberg (2005) Chapter 3 pp. 135-189

## External links[edit]

- HARD SPHERE MOLECULAR DYNAMICS PROGRAM example code (in FORTRAN) from M. P. Allen and D. J. Tildesley "Computer Simulation of Liquids", Oxford University Press (1989)
- Github repository with Event-driven molecular hard sphere code (in C) from Frank Smallenburg, "Efficient event-driven simulations of hard spheres", European Physical Journal E
**45**, 22 (2022)