Controlling Majorana hybridization in magnetic chain-superconductor systems
(2024) In Physical Review Research 6(3).- Abstract
We propose controlling the hybridization between Majorana zero modes at the ends of magnetic adatom chains on superconductors by an additional magnetic adatom deposited close by. By tuning the additional adatom's magnetization, position, and coupling to the superconductor, we can couple and decouple the Majorana modes, as well as control the ground-state parity. The scheme is independent of microscopic details in ferromagnetic and helical magnetic chains on superconductors, with and without spin-orbit coupling, which we show by studying their full microscopic models and their common low-energy description. Our results show that scanning tunneling microscopy and electron-spin-resonance techniques are promising tools for controlling the... (More)
We propose controlling the hybridization between Majorana zero modes at the ends of magnetic adatom chains on superconductors by an additional magnetic adatom deposited close by. By tuning the additional adatom's magnetization, position, and coupling to the superconductor, we can couple and decouple the Majorana modes, as well as control the ground-state parity. The scheme is independent of microscopic details in ferromagnetic and helical magnetic chains on superconductors, with and without spin-orbit coupling, which we show by studying their full microscopic models and their common low-energy description. Our results show that scanning tunneling microscopy and electron-spin-resonance techniques are promising tools for controlling the Majorana hybridization in magnetic adatoms-superconductor setups, providing a basis for Majorana parity measurements, fusion, and braiding techniques.
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- author
- Awoga, Oladunjoye A. LU ; Ioannidis, Ioannis ; Mishra, Archana ; Leijnse, Martin LU ; Trif, Mircea and Posske, Thore
- organization
- publishing date
- 2024-06
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review Research
- volume
- 6
- issue
- 3
- article number
- 033154
- publisher
- American Physical Society
- external identifiers
-
- scopus:85201566818
- ISSN
- 2643-1564
- DOI
- 10.1103/PhysRevResearch.6.033154
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © 2024 authors. Published by the American Physical Society.
- id
- e198796e-bf2b-463a-be70-0e2bac5b58c0
- date added to LUP
- 2024-08-27 01:29:31
- date last changed
- 2025-04-04 14:26:07
@article{e198796e-bf2b-463a-be70-0e2bac5b58c0,
abstract = {{<p>We propose controlling the hybridization between Majorana zero modes at the ends of magnetic adatom chains on superconductors by an additional magnetic adatom deposited close by. By tuning the additional adatom's magnetization, position, and coupling to the superconductor, we can couple and decouple the Majorana modes, as well as control the ground-state parity. The scheme is independent of microscopic details in ferromagnetic and helical magnetic chains on superconductors, with and without spin-orbit coupling, which we show by studying their full microscopic models and their common low-energy description. Our results show that scanning tunneling microscopy and electron-spin-resonance techniques are promising tools for controlling the Majorana hybridization in magnetic adatoms-superconductor setups, providing a basis for Majorana parity measurements, fusion, and braiding techniques.</p>}},
author = {{Awoga, Oladunjoye A. and Ioannidis, Ioannis and Mishra, Archana and Leijnse, Martin and Trif, Mircea and Posske, Thore}},
issn = {{2643-1564}},
language = {{eng}},
number = {{3}},
publisher = {{American Physical Society}},
series = {{Physical Review Research}},
title = {{Controlling Majorana hybridization in magnetic chain-superconductor systems}},
url = {{http://dx.doi.org/10.1103/PhysRevResearch.6.033154}},
doi = {{10.1103/PhysRevResearch.6.033154}},
volume = {{6}},
year = {{2024}},
}