Rice-Mele model with topological solitons in an optical lattice

Abstract

Attractive ultra-cold fermions trapped in a one-dimensional periodically shaken opticla lattices are considered. For an appropriate resonant shaking the system realizes paradigmatic dimes physics described by Rice-Mele model. The important feature of our system is the possible presence of controlled defects. They result in the creation of topologically protected loclaized modes carrying fractional particle number. Their possible experimental signatures are discussed.

15pp, 4figs version accepted in NJP

References in corpus (6)

• Dynamical control of matter-wave tunneling in periodic potentials
• Tunable gauge potential for neutral and spinless particles in driven lattices
• Using photoemission spectroscopy to probe a strongly interacting Fermi gas
• Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
• Interaction-controlled transport of an ultracold Fermi gas
• Bose-Hubbard model with occupation dependent parameters

Cited by in corpus (10)

• Non-standard Hubbard models in optical lattices: a review
• Bulk-boundary correspondence from the inter-cellular Zak phase
• Floquet analysis of a quantum system with modulated periodic driving
• Catalog of noninteracting tight-binding models with two energy bands in one dimension
• Nonsymmorphic chiral symmetry and solitons in the Rice-Mele model
• Identifying gap-closings in open non-Hermitian systems by Biorthogonal Polarization
• Spontaneous magnetization and anomalous Hall effect in an emergent Dice lattice
• The extended states in disordered 1D systems in the presence of the generalized $N$-mer correlations
• Artificial topological models based on a one-dimensional spin-dependent optical lattice
• Characterizing topological pumping of charges in exactly solvable Rice-Mele chains of the non-Hermitian variety