The fate of high winding number topological phases in the disordered extended Su-Schrieffer-Heeger model

• Main Authors: Cinnirella, Emmanuele G, Nava, Andrea, Campagnano, Gabriele, Giuliano, Domenico
• Format: Journal Article
• Language: English
• Published: 30-01-2024
• Subjects: Physics - High Energy Physics - Theory; Physics - Strongly Correlated Electrons
• DOI: 10.48550/arxiv.2311.11405

Physical Review B 109, 035114 (2024) We use the Lindblad equation approach to investigate topological phases
hosting more than one localized state at each side of a disordered SSH chain
with properly tuned long range hoppings. Inducing a non equilibrium steady
state across the chain, we probe the robustness of each phase and the fate of
the edge modes looking at the distribution of electrons along the chain and the
corresponding standard deviation in the presence of different kinds of disorder
either preserving, or not, the symmetries of the Hamiltonian.