Line Plot from Scientific Research

Three pumping trajectories with varying maximum site offsets Δ 0 and fixed maximum dimerization δ 0. All the three paths start in the same state. The first trajectory (blue path) prohibits the formation of DOs and therefore precludes transport. Trajectories 2 and 3, with larger Δ 0 (blue and green paths), allow for tunnelling between the sites of a unit cell when crossing the | Δ ( τ )| = U /2 line parallel to the dimerization axis (black dashed lines).

DOI