  We outline how QED with spinor matter can be described by the tensionless
limit of spinning strings with contact interactions. The strings represent
electric lines of force with charges at their ends. The contact interaction is
constructed from a delta-function on the world-sheet which, although off-shell,
decouples from the world-sheet metric. Integrating out the string degrees of
freedom with fixed boundary generates the super-Wilson loop that couples spinor
matter to electromagnetism in the world-line formalism. World-sheet and
world-line, but not spacetime, supersymmetry underpin the model.

High Energy Physics - Theory