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2014•Journal of the Physical Society of JapanRequires access

Andreev Reflection in a T-Shaped Double-Quantum-Dot Structure Induced by Majorana Bound States

Wei‐Jiang Gong, Shu-Feng Zhang, Zhichao Li, Guang-Yu Yi, Yisong Zheng

Open publisher page 11 citations

Abstract

The Andreev reflection in a T-shaped double-quantum-dot structure induced by Majorana bound states is theoretically investigated. It is found that due to the Fano effect, the Andreev conductance spectrum presents a well-defined insulating band in the low-bias region. By discussing the influences of quantum dot levels, interdot coupling, and the coupling between the quantum dot and the Majorana bound state, the properties of the insulating band are analyzed in detail. We believe that all the results can help the researchers to understand the nontrivial role of the Majorana bound states in manipulating the Andreev reflection.

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What this paper is about

The Andreev reflection in a T-shaped double-quantum-dot structure induced by Majorana bound states is theoretically investigated. It is found that due to the Fano effect, the Andreev conductance spectrum presents a well-defined insulating band in the low-bias region. By discussing the influences of quantum dot levels, interdot coupling, and the coupling between the quantum dot and the Majorana bound state, the properties of the insulating band are analyzed in detail. We believe that all the results can help the researchers to understand the nontrivial role of the Majorana bound states in manipulating the Andreev reflection.

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OpenAlex reports 11 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The Andreev reflection in a T-shaped double-quantum-dot structure induced by Majorana bound states is theoretically investigated. It is found that due to the Fano effect, the Andreev conductance spectrum presents a well-defined insulating band in the low-bias region. By discussing the influences of quantum dot levels, interdot coupling, and the coupling between the quantum dot and the Majorana bound state, the properties of the insulating band are analyzed in detail. We believe that all the results can help the researchers to understand the nontrivial role of the Majorana bound states in manipulating the Andreev reflection.

Key concepts: Andreev reflection, MAJORANA, Bound state, Physics, Quantum dot, Condensed matter physics, Coupling (piping), Reflection (computer programming)

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