Detecting Majorana modes by readout of poisoning-induced parity flips
(2023) In Physical Review B 107(12).- Abstract
Reading out the parity degree of freedom of Majorana bound states is key to demonstrating their non-Abelian exchange properties. Here, we present a low-energy model describing localized edge states in a two-arm device. We study parity-to-charge conversion based on coupling the superconductor bound states to a quantum dot whose charge is read out by a sensor. The dynamics of the system, including the readout device, is analyzed in full using a quantum-jump approach. We show how the resulting signal and signal-to-noise ratio differentiates between local Majorana and Andreev bound states.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1e1302c4-a8b6-4ef6-9bd7-c6b1650cd074
- author
- Schulenborg, Jens ; Krøjer, Svend ; Burrello, Michele ; Leijnse, Martin LU and Flensberg, Karsten
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B
- volume
- 107
- issue
- 12
- article number
- L121401
- publisher
- American Physical Society
- external identifiers
-
- scopus:85150931915
- ISSN
- 2469-9950
- DOI
- 10.1103/PhysRevB.107.L121401
- language
- English
- LU publication?
- yes
- id
- 1e1302c4-a8b6-4ef6-9bd7-c6b1650cd074
- date added to LUP
- 2023-05-23 11:15:10
- date last changed
- 2023-11-08 06:11:25
@article{1e1302c4-a8b6-4ef6-9bd7-c6b1650cd074, abstract = {{<p>Reading out the parity degree of freedom of Majorana bound states is key to demonstrating their non-Abelian exchange properties. Here, we present a low-energy model describing localized edge states in a two-arm device. We study parity-to-charge conversion based on coupling the superconductor bound states to a quantum dot whose charge is read out by a sensor. The dynamics of the system, including the readout device, is analyzed in full using a quantum-jump approach. We show how the resulting signal and signal-to-noise ratio differentiates between local Majorana and Andreev bound states.</p>}}, author = {{Schulenborg, Jens and Krøjer, Svend and Burrello, Michele and Leijnse, Martin and Flensberg, Karsten}}, issn = {{2469-9950}}, language = {{eng}}, number = {{12}}, publisher = {{American Physical Society}}, series = {{Physical Review B}}, title = {{Detecting Majorana modes by readout of poisoning-induced parity flips}}, url = {{http://dx.doi.org/10.1103/PhysRevB.107.L121401}}, doi = {{10.1103/PhysRevB.107.L121401}}, volume = {{107}}, year = {{2023}}, }