Symmetry-Engineered Multiple Bulk-Boundary Correspondences and Anomalous Modes in a Non-Hermitian Creutz Ladder

Xin Li, TongYi Li, JingYu Peng +1

The synergy between non-Hermiticity and topology makes the bulk-boundary correspondence (BBC) highly elusive. Here we study a non-Hermitian Creutz ladder incorporating both gain-lo…