Revealing Superconducting Chiral Edge Modes via Resistance Distributions
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866918284936347648 |
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| author | Huang, Linghao Qian, Dongheng Wang, Jing |
| author_facet | Huang, Linghao Qian, Dongheng Wang, Jing |
| contents | Inducing superconducting correlations in quantum anomalous Hall (QAH) states offers a promising route to realize topological superconductivity with chiral Majorana edge modes. However, the definitive identification of these modes is challenging. Here we propose detecting superconducting chiral edge modes via the probability distribution of the resistance, or equivalently the charge transmission of QAH-superconductor heterojunctions. Remarkably, the distribution for coherent edge exhibits distinct characteristics for different topological superconducting phases in sufficiently long junctions, and this difference remains robust against weak decoherence. These findings provide insights into transport phenomena beyond the clean limit and highlight the resistance distribution as a compelling signature for distinguishing topological superconducting phases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_11456 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Revealing Superconducting Chiral Edge Modes via Resistance Distributions Huang, Linghao Qian, Dongheng Wang, Jing Mesoscale and Nanoscale Physics Materials Science Superconductivity Inducing superconducting correlations in quantum anomalous Hall (QAH) states offers a promising route to realize topological superconductivity with chiral Majorana edge modes. However, the definitive identification of these modes is challenging. Here we propose detecting superconducting chiral edge modes via the probability distribution of the resistance, or equivalently the charge transmission of QAH-superconductor heterojunctions. Remarkably, the distribution for coherent edge exhibits distinct characteristics for different topological superconducting phases in sufficiently long junctions, and this difference remains robust against weak decoherence. These findings provide insights into transport phenomena beyond the clean limit and highlight the resistance distribution as a compelling signature for distinguishing topological superconducting phases. |
| title | Revealing Superconducting Chiral Edge Modes via Resistance Distributions |
| topic | Mesoscale and Nanoscale Physics Materials Science Superconductivity |
| url | https://arxiv.org/abs/2503.11456 |