| Full text | |
| 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 |