Comment on "Floquet topological phase transition in the $\alpha$--${\mathcal{T}}_3$ lattice"

Abstract

A recent paper studied the topological phase transition driven by the circular frequency light in the $\alpha$--${\mathcal{T}}_3$ lattice. In this Comment we point out that there is a flaw in the derivation of the effective Hamiltonian in this paper.

3 pages, 4 figures