Non-Hermitian non-Abelian topological insulators with PT symmetry
We study a non-Hermitian non-Abelian topological insulator preserving PT symmetry, where the non-Hermitian term represents nonreciprocal hoppings. As it increases, a spontaneous PT symmetry breaking transition occurs in the perfect-flat band model from a real-line-gap topological insulator into an i...
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| Format: | Article |
| Language: | English |
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American Physical Society
2021-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.043006 |