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Type: Artigo
Title: Encrypting Majorana fermion qubits as bound states in the continuum
Author: Guessi, L. H.
Dessotti, F. A.
Marques, Y.
Ricco, L. S.
Pereira, G. M.
Menegasso, P.
Souza, M. de
Seridonio, A. C.
Abstract: We theoretically investigate a topological Kitaev chain connected to a double quantum-dot (QD) setup hybridized with metallic leads. In this system we observe the emergence of two striking phenomena: (i) a decrypted Majorana fermion (MF) qubit recorded over a single QD, which is detectable by means of conductance measurements due to the asymmetrical MF-qubit leaked state into the QDs; (ii) an encrypted qubit recorded in both QDs when the leakage is symmetrical. In such a regime, we have a cryptographylike manifestation, since the MF qubit becomes bound states in the continuum, which is not detectable in conductance experiments.
Subject: Supercondutores - Materiais
Pontos quânticos
Superconductors - Materials
Quantum dots
Country: Estados Unidos
Editor: American Physical Society
Rights: aberto
Identifier DOI: 10.1103/PhysRevB.96.041114
Date Issue: 2017
Appears in Collections:IFGW - Artigos e Outros Documentos

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