Vortex Pinning: 2D Cross-Section of Flux Creep & Flow

A top-down 2D companion to the 3D vortex-pinning simulator. The Abrikosov flux-line lattice threading a type-II superconductor is rendered as a plan view: each dot is a vortex line seen end-on, grey dots are material defects that pin them. Push the drive current above a vortex's local pinning threshold and watch it depin and stream sideways under the Lorentz force; keep it below threshold and thermal energy still lets vortices creep slowly between defects (Anderson–Kim flux creep). Live readouts track vortex count, the fraction still pinned, average drift velocity, and the J/J_c ratio that separates lossless transport from resistive flux flow.