Entanglement Research for the Coupled Superconducting Phase Qubit and a Two-Level System
Author
Source
Advances in Condensed Matter Physics
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-21
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Entanglement can exist not only in the microscopic system (e.g., atom, photon, and ion trap) but also in macroscopic systems.
According to recent research, entanglement can be achieved and controlled in superconducting devices.
The quantum dynamics and entanglement mechanism of the coupled superconducting phase qubit and a two-level system (TLS) were demonstrated when the bipartite system was under microwave driving.
Besides, the results reveal that when the system was experiencing decoherence, entanglement (concurrence) of the coupled superconducting phase qubit and TLS would oscillate damply with microwave driving time, even exhibiting concurrence sudden death and revival.
The coupling effect of the superconducting qubit and TLS system and the resonant microwave together help to achieve entanglement, while concurrence death and concurrence revival are dependent on the decoherence source and mechanism, for example, the resonant microwave driving time acting on the bipartite coupling system.
Furthermore, the simulation results show the entanglement of the coupled qubit and TLS system also depends on the purity of the initial states of the system.
The article carried out a numerical simulation on the entanglement of different initial states, and the results showed that the entanglement of the coupled system changes with different initial states.
For different initial states, entanglement, sudden death, and rejuvenation are still visible.
American Psychological Association (APA)
Shi, Jianxin. 2020. Entanglement Research for the Coupled Superconducting Phase Qubit and a Two-Level System. Advances in Condensed Matter Physics،Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1126081
Modern Language Association (MLA)
Shi, Jianxin. Entanglement Research for the Coupled Superconducting Phase Qubit and a Two-Level System. Advances in Condensed Matter Physics No. 2020 (2020), pp.1-8.
https://search.emarefa.net/detail/BIM-1126081
American Medical Association (AMA)
Shi, Jianxin. Entanglement Research for the Coupled Superconducting Phase Qubit and a Two-Level System. Advances in Condensed Matter Physics. 2020. Vol. 2020, no. 2020, pp.1-8.
https://search.emarefa.net/detail/BIM-1126081
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1126081