Abstract
It has proven difficult to distinguish between topological Majorana bound states and nontopological Andreev bound states and to measure the unique properties of the former. In this work, we aim to alleviate this problem by proposing and theoretically analyzing a different type of fusion protocol based on transport measurements in a Majorana box coupled to normal leads. The protocol is based on switching between different nanowire pairs being tunnel coupled to one of the leads. For a Majorana system, this leads to switching between different states associated with parity blockade. The charge being transmitted at each switch provides a measurement of the Majorana fusion rules. Importantly, the result is different for a system with nontopological Andreev bound states. The proposed protocol only requires measuring a DC current combined with fast gate control of the tunnel couplings.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | 165404 |
| Tidsskrift | Physical Review B |
| Vol/bind | 109 |
| Udgave nummer | 16 |
| Antal sider | 9 |
| ISSN | 2469-9950 |
| DOI | |
| Status | Udgivet - 2024 |
Bibliografisk note
Funding Information:We acknowledge stimulating discussions with Jens Schulenborg and Athanasios Tsintzis and funding from the European Research Council (ERC) under the European Unions Horizon 2020 research and innovation programme under Grant Agreement No. 856526, the Spanish CM “Talento Program” (Project No. 2022-T1/IND-24070), Spanish Ministry of Science, innovation, and Universities through Grant PID2022-140552NA-I00, the Swedish Research Council under Grant Agreement No. 2020-03412, and NanoLund.
Publisher Copyright:
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