Encrypting Majorana Fermions-qubits as Bound States in the Continuum
Mesoscale and Nanoscale Physics
2017-07-19 v3
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.
Keywords
Cite
@article{arxiv.1703.10226,
title = {Encrypting Majorana Fermions-qubits as Bound States in the Continuum},
author = {L. H. Guessi and F. A. Dessotti and Y. Marques and L. S. Ricco and G. M. Pereira and P. Menegasso and M. de Souza and A. C. Seridonio},
journal= {arXiv preprint arXiv:1703.10226},
year = {2017}
}