“…The tight-binding Su-Schrieffer-Heeger (SSH) model [43], which in its most basic version only includes a real intracell hopping term and a real nearest-neighbor intercell hopping term, has been widely studied as a one-dimensional prototype allowing for a nontrivial topological phase [44,45]. This model has been extended in a variety of Hermitian [46][47][48][49] and non-Hermitian forms [16,20,21,27,[39][40][41][50][51][52][53][54][55][56][57][58]. In particular, the non-Hermitian extensions, which are also called complex SSH models, are a powerful platform for studying interactions of topological properties with non-Hermiticity, and many breakthroughs have been made based on them, such as anomalous edge states [21], non-Bloch bulk-edge correspondence [27], topological lasing [39][40][41], and spontaneous topological pumping [58].…”