Archivio istituzionale della ricerca dell'Università degli Studi di Palermo
IRIS è il sistema di gestione integrata dei dati della ricerca (persone, pubblicazioni, progetti, attività) adottato dall’Università di Palermo, e ha lo scopo di raccogliere, conservare, documentare, e diffondere ad accesso aperto le informazioni relative alla produzione scientifica degli autori afferenti all’Ateneo.
EnglishWe analyze a system of two interacting spin-qubits subjected to a Landau-Majorana-Stückelberg-Zener (LMSZ) ramp. We prove that LMSZ transitions of the two spin qubits are possible without an external transverse static field since its role is played by the coupling between the spin qubits. We show how such a physical effect could be exploited to estimate the strength of the interaction between the two spin qubits and to generate entangled states of the system by appropriately setting the slope of the ramp. Moreover, the study of effects of the coupling parameters on the time behavior of the entanglement is reported. Finally, our symmetry-based approach allows us to discuss also effects stemming from the presence of a classical noise or non-Hermitian dephasing terms.
| Data di pubblicazione: | 2019 |
| Titolo: | Coupling-assisted Landau-Majorana-Stückelberg-Zener transition in a system of two interacting spin qubits |
| Autori: | |
| Citazione: | Grimaudo, R., Vitanov, N., & Messina, A. (2019). Coupling-assisted Landau-Majorana-Stückelberg-Zener transition in a system of two interacting spin qubits. PHYSICAL REVIEW. B, 99(17), 174416-1-174416-8. |
| Rivista: | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevB.99.174416 |
| Abstract: | We analyze a system of two interacting spin-qubits subjected to a Landau-Majorana-Stückelberg-Zener (LMSZ) ramp. We prove that LMSZ transitions of the two spin qubits are possible without an external transverse static field since its role is played by the coupling between the spin qubits. We show how such a physical effect could be exploited to estimate the strength of the interaction between the two spin qubits and to generate entangled states of the system by appropriately setting the slope of the ramp. Moreover, the study of effects of the coupling parameters on the time behavior of the entanglement is reported. Finally, our symmetry-based approach allows us to discuss also effects stemming from the presence of a classical noise or non-Hermitian dephasing terms. |
| URL: | http://harvest.aps.org/bagit/articles/10.1103/PhysRevB.99.174416/apsxml |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| PhysRevB.99.174416.pdf | Versione Editoriale | Administrator Richiedi una copia | ||
| copyright.pdf | Contratto con l'editore (ATTENZIONE: NON TRASFERIRE A SITO DOCENTE) | Administrator Richiedi una copia |
http://hdl.handle.net/10447/362138
Copyright © 2020