The ${\mathbb{Z}}_2$ toric-code and the double-semion topological order of hardcore Bose-Hubbard-type models in the strong-interaction limit

Wei Wang, Barbara Capogrosso-Sansone

We present a generic framework for the emergence of the ${\mathbb{Z}}_2$ toric-code and the double-semion topological order in a wide class of hardcore Bose-Hubbard-type models gover…