Mass-Imbalanced Ionic Hubbard Chain

Michael Sekania, Dionys Baeriswyl, Luka Jibuti +1

A repulsive Hubbard model with both spin-asymmetric hopping ($t_{\uparrow }\ne t_{\downarrow }$) and a staggered potential (of strength $\Delta$) is studied in one dimension. The model is…