Transport-based fusion that distinguishes between Majorana and Andreev bound states
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Transport-based fusion that distinguishes between Majorana and Andreev bound states. / Nitsch, Maximilian; Seoane Souto, Rubén; Matern, Stephanie; Leijnse, Martin.
I: Physical Review B, Bind 109, Nr. 16, 165404, 2024.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Transport-based fusion that distinguishes between Majorana and Andreev bound states
AU - Nitsch, Maximilian
AU - Seoane Souto, Rubén
AU - Matern, Stephanie
AU - Leijnse, Martin
N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by "https://www.kb.se/samverkan-och-utveckling/oppen-tillgang-och-bibsamkonsortiet/bibsamkonsortiet.html"Bibsam.
PY - 2024
Y1 - 2024
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevB.109.165404
DO - 10.1103/PhysRevB.109.165404
M3 - Journal article
AN - SCOPUS:85189323017
VL - 109
JO - Physical Review B
JF - Physical Review B
SN - 2469-9950
IS - 16
M1 - 165404
ER -
ID: 389905582