Photo from wikipedia
We introduce a one-dimensional non-Hermitian four-band tight-binding lattice system. We find stable topological edge states protected by particle-hole and parity-time symmetries. We show that a topological phase appears in the… Click to show full abstract
We introduce a one-dimensional non-Hermitian four-band tight-binding lattice system. We find stable topological edge states protected by particle-hole and parity-time symmetries. We show that a topological phase appears in the system. We discuss that the system can also be used as a topological laser if the gain and loss positions in a unit cell are judiciously arranged.
Keywords:
stable topological;
hermitian four;
topological edge;
edge states;
non hermitian;
four band
Journal Title: Physical Review A
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!
Journal Title: Physical Review A
Year Published: 2018
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!