Topological Mott insulators of ultracold atomic mixtures induced by interactions in one-dimensional optical superlattices

Abstract

We present exactly solvable examples that topological Mott insulators can emerge from topologically trivial states due to strong interactions between atoms for atomic mixtures trapped in one-dimensional optical superlattice systems. The topological Mott insulating state is characterized by nonzero Chern number and appears in the strongly interacting limit as long as the total band filling factor is an integer, which is not sensitive to the filling of each component. The topological nature of the Mott phase can be revealed by observing the density profile of the trapped system. Our results can be also generalized to the multi-component atomic systems.

7 pages, 7 figures, version appeared in PRB

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Cited by in corpus (26)

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• Non-Hermitian topological Mott insulators in one-dimensional fermionic superlattices
• Topological equivalence of crystal and quasicrystal band structures
• Topological insulator and particle pumping in a one-dimensional shaken optical lattice
• Topological Bose-Mott insulators in one-dimensional non-Hermitian superlattices
• Kaleidoscope of symmetry protected topological phases in one-dimensional periodically modulated lattices
• Dynamical evolution in a one-dimensional incommensurate lattice with $\mathcal{P}\mathcal{T}$ symmetry
• Topological transitions of interacting bosons in one-dimensional bi-chromatic optical lattices
• Dynamical observation of mobility edges in one-dimensional incommensurate optical lattices
• Diagnosis of interaction-driven topological phase via exact diagonalization
• Quantum phases and topological properties of interacting fermions in one-dimensional superlattices
• Topological nature of magnetization plateaus in periodically modulated quantum spin chains
• Simulating bosonic Chern insulators in one-dimensional optical superlattices
• Anomalous charge pumping in a one-dimensional optical superlattice
• Interorbital Interactions in an SU(2)xSU(6)-Symmetric Fermi-Fermi Mixture
• Topological incommensurate magnetization plateaus in quasi-periodic quantum spin chains
• Topological Mott Insulator with Bosonic Edge Modes in 1D Fermionic Superlattices
• Statistically induced topological phase transitions in a one-dimensional superlattice anyon-Hubbard model
• Topologically protected mid-gap states induced by impurity in one-dimensional superlattices
• Reentrant topological phases and spin density wave induced by 1D moiré potentials
• Topologically nontrivial states in one-dimensional nonlinear bichromatic superlattices
• Topological end states in a one-dimensional spatially modulated interaction spinless fermion model
• Reentrant topological phases and entanglement scalings in moiré-modulated extended Su-Schrieffer-Heeger Model
• Compressibility enhancement in an almost staggered interacting Harper model
• The $\pi$ Berry Phase and Topological Excitation in Interacting Boson-Fermion Mixtures
• Connecting Topological Anderson and Mott Insulators in Disordered Interacting Fermionic Systems