Predicting Large-Chern-Number Phases in a Shaken Optical Dice Lattice

Abstract

With respect to the quantum anomalous Hall effect (QAHE), the detection of topological nontrivial large-Chern-number phases is an intriguing subject. Motivated by recent research on Floquet topological phases, this study proposes a periodic driving protocol to engineer large-Chern-number phases using QAHE. Herein, spinless ultracold fermionic atoms are studied in a two-dimensional optical dice lattice with nearest-neighbor hopping and a $\Lambda$/V-type sublattice potential subjected to a circular driving force. Results suggest that large-Chern-number phases exist with Chern numbers equal to $C=-2$, which is consistent with the edge-state energy spectra.

arXiv comment7 pages, 4 figures

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Cited by in corpus (6)

• Floquet engineering of topological phase transitions in quantum spin Hall $\alpha$-$T_3$ system
• Non-Hermiticity induced Exceptional Points and Skin Effect in the Dice-Haldane Model
• Electrical and thermal transport through $\alpha -T_3$ NIS junction
• Large Chern numbers in a dissipative dice model
• Metal-insulator phase transition and topology in a three-component system
• Floquet topological phases with high Chern numbers in a periodically driven extended Su-Schrieffer-Heeger model