Su-Schrieffer-Heeger model with imaginary gauge field |
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| Authors: | Z Oztas N Candemir |
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| Affiliation: | Department of Physics, Eskisehir Technical University, Turkey |
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| Abstract: | We consider Su-Schrieffer-Heeger (SSH) model in the presence of an imaginary gauge field. This model is non-Hermitian and has chiral symmetry. We investigate the influence of non-Hermiticity parameter on topologically trivial and nontrivial phases. We find topological edge states with real energy spectrum and obtain the topological invariant of the system. |
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| Keywords: | SSH model Edge sates Non-Hermitian skin effect Winding number |
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