Chirality plays a key role in non-trivial topological systems and can be used to engineer a range of exotic physical phenomena. Here, the authors investigate hidden chiral domain wall states and their topological properties in a double-chain Su-Schrieffer-Heeger model and elucidate a series of single and double gap phases that occur by varying the dimerization and interchain coupling.
- Seung-Gyo Jeong
- Sang-Hoon Han
- Sangmo Cheon
