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Noise‐Based Damping of Chaotic Entanglement in Pulsed Driven Two‐Qubit System.

Authors :
Abd‐Rabbou, M. Y.
Khalil, E. M.
Al‐Awfi, Saud
Source :
Annalen der Physik. Mar2024, Vol. 536 Issue 3, p1-8. 8p.
Publication Year :
2024

Abstract

This paper investigates the entanglement dynamics of a two‐qubit system in the presence of n‐sequential sin2$ \sin ^2$‐pulse shape. The study explores entanglement under two scenarios: when the system is completely isolated from the environment and when it interacts with one of the surrounding environments, namely the thermal environment and the common dephasing environment. The authors quantify entanglement through concurrence while systematically examining the effects of initial state preparation, qubit coupling strength, laser‐qubit interaction intensity, pulse sequences, and decohering environments. The results highlight that the entanglement of the two‐qubit system strongly depends on the initial state. Increasing the coupling strength between the qubits and the n‐sequential pulse enhances the maximum values of entanglement. Conversely, augmenting the laser‐qubits coupling or introducing the influence of the environment diminishes the entanglement. [ABSTRACT FROM AUTHOR]

Subjects

Subjects :
*QUBITS
*SYSTEM dynamics

Details

Language :
English
ISSN :
00033804
Volume :
536
Issue :
3
Database :
Academic Search Index
Journal :
Annalen der Physik
Publication Type :
Academic Journal
Accession number :
176037847
Full Text :
https://doi.org/10.1002/andp.202300423