Vortex Dynamics Instabilities leading to vortex-bundle motion in superconductors are being studied via molecular dynamics simulations. The image shown is a snapshot from a molecular dynamics simulation of field-driven vortices moving in a random pinning potential background. Black dots are vortices. Yellow dots represent short-range pinning wells.
Black trails record the path the vortices have taken.
The image is courtesy of Prof. Franco Nori of the University of Michigan.