Symmetry-Breaking Topological Insulators in the ${\mathbb{Z}}_2$ Bose-Hubbard Model

Daniel González-Cuadra, Alexandre Dauphin, Przemysław R. Grzybowski +3

In this work, we study a one-dimensional model of interacting bosons coupled to a dynamical ${\mathbb{Z}}_2$ field, the ${\mathbb{Z}}_2$ Bose-Hubbard model, and analyze the interplay b…