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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Encrypting Majorana fermion qubits as bound states in the continuum

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Author(s):
Guessi, L. H. ; Dessotti, F. A. ; Marques, Y. ; Ricco, L. S. ; Pereira, G. M. ; Menegasso, P. ; de Souza, M. ; Seridonio, A. C.
Total Authors: 8
Document type: Journal article
Source: Physical Review B; v. 96, n. 4 JUL 13 2017.
Web of Science Citations: 10
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. (AU)

FAPESP's process: 15/23539-8 - A novel manner of qubit storage: vacuum fluctuations and BICs of Majoranas assisted by a non-trivial Kondo effect
Grantee:Luciano Henrique Siliano Ricco
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 15/26655-9 - Exploring bound states in the continuum in graphene via NRG and DFT approaches
Grantee:Luiz Henrique Bugatti Guessi
Support type: Scholarships in Brazil - Doctorate