WebJan 26, 2024 · The high Chern number phases with the Chern number C > 1 are observed in this study of a periodically driven extended Su-Schrieffer-Heeger (E-SSH) model with a cyclic parameter. WebMay 16, 2024 · By applying our scheme to a non-Hermitian Su-Schrieffer-Heeger model and an extended version of it, we show that the topologically different phases can be well characterized by winding numbers. Furthermore, we demonstrate that the existence of left and right zero-mode edge states is closely related to the winding number ν1 and ν2.
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WebJan 13, 2024 · Here we consider a chirally extended SSH model, double-Peierls-chain model, realized in indium atomic chains on a silicon substrate 29,30. The double-chain model possesses not only \ ... WebPhase diagram for the extended SSH model with the NNN hopping amplitude given by Eq. (3). The number C indicates the Chern number of the lower band. Source publication Realization of Haldane-like... lakers with magic johnson
Effects of correlations on phase diagrams of the two-dimensional …
WebThe starting point of this article is to extend the SSH model by adding additional hopping which preserves chiral symmetry. Although the extended SSH model with long-range … WebOct 1, 2024 · In Section 2, we give the extended two-dimensional SSH model with longer-range hoppings and obtain the non-interacting topological phase diagrams. In Section 3, the on-site Hubbard interaction is introduced into the model and the influences of correlations on the phase boundaries and topological phase diagram are investigated. The … Webthe 2D Haldane’s model. The topologically nontrivial edge states in our model may be observed in photonic crystal systems. Furthermore, we find that an extended SSH model with the sublattice potential modulated also exhibits nontrivial topological phases. II. MODELS AND RESULTS A. Model Hamiltonian We consider an 1D lattice with one unit ... hello kitty fleece hoodie