Characterizing local Majorana properties using Andreev states
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866911346026610688 |
|---|---|
| author | Alvarado, Miguel Yetati, Alfredo Levy Aguado, Ramón Souto, Rubén Seoane |
| author_facet | Alvarado, Miguel Yetati, Alfredo Levy Aguado, Ramón Souto, Rubén Seoane |
| contents | We propose using Andreev bound states (ABS) as spectroscopic probes to characterize Majorana zero modes (MZMs) in quantum-dot based minimal Kitaev chains. Specifically, we show that tunneling conductance measurements with a superconducting probe hosting an ABS reveal four subgap peaks whose voltage positions and relative heights enable extraction of the MZM energy splitting and Bogoliubov-de Gennes coherence factors. This provides direct access to zero-splitting regimes and to the local Majorana polarization - a measure of the Majorana character. The method is compatible with existing experimental architectures and remains robust in extended chains. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_20591 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Characterizing local Majorana properties using Andreev states Alvarado, Miguel Yetati, Alfredo Levy Aguado, Ramón Souto, Rubén Seoane Mesoscale and Nanoscale Physics Superconductivity We propose using Andreev bound states (ABS) as spectroscopic probes to characterize Majorana zero modes (MZMs) in quantum-dot based minimal Kitaev chains. Specifically, we show that tunneling conductance measurements with a superconducting probe hosting an ABS reveal four subgap peaks whose voltage positions and relative heights enable extraction of the MZM energy splitting and Bogoliubov-de Gennes coherence factors. This provides direct access to zero-splitting regimes and to the local Majorana polarization - a measure of the Majorana character. The method is compatible with existing experimental architectures and remains robust in extended chains. |
| title | Characterizing local Majorana properties using Andreev states |
| topic | Mesoscale and Nanoscale Physics Superconductivity |
| url | https://arxiv.org/abs/2507.20591 |