The change in connectivity with two simultaneous pulses (top) one pulse (bottom) and when v₀ = 0.04, A_d = 80 and η = 5 × 10^-4. The red and blue flux tubes (traced from the driving boundaries) are initially connected to the gold field lines anchored on the side boundaries. Taken at times t = 1 (left), 3 (middle) and 5 (right). (This figure is available in color in the electronic form.)