Non-Hermiticity enhanced topological immunity of one-dimensional $p$-wave superconducting chain
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2025
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866916558538801152 |
|---|---|
| author | Liu, Min Zhang, Yue Tian, Rui He, Xiayao Wu, Tianhao Arzamasovs, Maksims Li, Shuai Liu, Bo |
| author_facet | Liu, Min Zhang, Yue Tian, Rui He, Xiayao Wu, Tianhao Arzamasovs, Maksims Li, Shuai Liu, Bo |
| contents | Studying the immunity of topological superconductors against non-local disorder is one of the key issues in both fundamental researches and potential applications. Here, we demonstrate that the non-Hermiticity can enhance the robustness of topological edge states against non-local disorder. To illustrate that, we consider a one-dimensional (1D) generalized Kitaev model with the asymmetric hopping in the presence of disorder. It is shown that the region supporting Majorana zero modes (MZMs) against non-local disorder will be enlarged by the non-Hermiticity. Through both the numerical and analytical analyses, we show that non-Hermiticity can stabilize the topological superconducting (SC) phase against higher disorder strength. Our studies would offer new insights into the interplay between non-Hermiticity and topology. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_05010 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Non-Hermiticity enhanced topological immunity of one-dimensional $p$-wave superconducting chain Liu, Min Zhang, Yue Tian, Rui He, Xiayao Wu, Tianhao Arzamasovs, Maksims Li, Shuai Liu, Bo Superconductivity Mesoscale and Nanoscale Physics Quantum Gases Quantum Physics Studying the immunity of topological superconductors against non-local disorder is one of the key issues in both fundamental researches and potential applications. Here, we demonstrate that the non-Hermiticity can enhance the robustness of topological edge states against non-local disorder. To illustrate that, we consider a one-dimensional (1D) generalized Kitaev model with the asymmetric hopping in the presence of disorder. It is shown that the region supporting Majorana zero modes (MZMs) against non-local disorder will be enlarged by the non-Hermiticity. Through both the numerical and analytical analyses, we show that non-Hermiticity can stabilize the topological superconducting (SC) phase against higher disorder strength. Our studies would offer new insights into the interplay between non-Hermiticity and topology. |
| title | Non-Hermiticity enhanced topological immunity of one-dimensional $p$-wave superconducting chain |
| topic | Superconductivity Mesoscale and Nanoscale Physics Quantum Gases Quantum Physics |
| url | https://arxiv.org/abs/2501.05010 |