Pseudo topological insulators
Abstract
We predict pseudo topological insulators that have been previously overlooked. We determine some conditions under which robust pseudo topological edge states appear and illustrate our idea on the Su-Schrieffer-Heeger (SSH) model with extra chiral symmetry breaking potentials. We discuss that pseudo topological insulating phase transition occurs without band gap closing.
- Publication:
-
Physics Letters A
- Pub Date:
- January 2019
- DOI:
- 10.1016/j.physleta.2018.10.024
- arXiv:
- arXiv:1808.07862
- Bibcode:
- 2019PhLA..383..248Y
- Keywords:
-
- Topological insulators;
- Condensed Matter - Strongly Correlated Electrons;
- Condensed Matter - Materials Science;
- Physics - Optics;
- Quantum Physics
- E-Print:
- To appear in PLA