Tunable Chern insulator with shaken optical lattices

TL;DR

This paper demonstrates how to create a tunable Chern insulator using shaken optical lattices with polychromatic driving, enabling exploration of topological phases without shallow lattices.

Contribution

It introduces a method to realize a tunable Chern insulator in driven optical lattices with strong correlations and non-trivial topology.

Findings

Realization of a tunable Chern insulator in shaken hexagonal lattices

Implementation without shallow lattices facilitates study of strongly-correlated topological phases

Use of polychromatic driving forces for optimal control

Abstract

Driven optical lattices permit the engineering of effective dynamics with well-controllable tunneling properties. We describe the realization of a tunable a Chern insulator by driving particles on a shaken hexagonal lattice with optimally designed polychromatic driving forces. Its implementation does not require shallow lattices, which favors the study of strongly-correlated phases with non-trivial topology.