Fig. 4
From: Topological characterizations of an extended Su–Schrieffer–Heeger model

Quench dynamics of the SSH4 model. a The initial state is prepared at the edge. b The theoretical simulations for the edge dynamics. c The initial state is prepared within the bulk. d The theoretical simulations for the bulk state. When the initial state is prepared at the edge, the population at the zero site is always dominant, while for the case of bulk injection, the zero-site population vanishes even for short quench durations. These quench dynamics confirm the boundary correspondence of the bulk topology observed in Fig. 3