Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

arXiv:0805.3325 · Physical Review A

Protecting, enhancing, and reviving entanglement

J. G. G. de Oliveira, R. Rossi, Maria Carolina Nemes

Published Oct 17, 2008• 30 citations
arXivHTMLPDF

Abstract

We propose a strategies not only to protect but also to enhance and revive the entanglement in a double Jaynes-Cummings model. We show that such surprising features arise when Zeno-like measurements are performed during the dynamical process.
DOI
10.1103/physreva.78.044301

Related papers

Entanglement dynamics and transfer in a double Jaynes-Cummings model

Feng Han

Chinese Science Bulletin•Jun 1, 2010•15 citations

Geometry in the Entanglement Dynamics of the Double Jaynes–Cummings Model

A. R. Vieira, J. G. G. de Oliveira Junior, J. G. Peixoto de Faria +1 more

arXiv:1107.5839•Brazilian Journal of Physics•Dec 19, 2013•10 citations

Entanglement Dynamics of the Double Intensity-Dependent Coupling Jaynes-Cummings Models

Qin Xie, Mao-Fa Fang

International Journal of Theoretical Physics•Oct 27, 2011•10 citations

Entanglement Dynamics of Atoms in Double Jaynes-Cummings Models with Kerr Medium

谢钦, 方卯发

理论物理通讯：英文版•Jan 1, 2010•0 citations

Effects of Markovian noise and cavity disorders on the entanglement dynamics of double Jaynes-Cummings models

Harsh Rathee, Kishore Thapliyal, Anirban Pathak

The ability to prepare and manipulate non-classical states, such as entangled qubits, is fundamental to the development of quantum information processing, communication, and computation. In this work, we investigate the dynamics of a double Jaynes-Cummings model, a well-established theoretical framework for studying light-matter interactions that captures essential features of a wide range of quantum systems, including circuit QED, optomechanics, and atomic cavity systems. We examine the model under the influence of Markovian noise and static (glassy) cavity disorder. The study aims to elucidate the impact of these imperfections on entanglement dynamics. The system is initialized with the cavity fields in vacuum and the two atoms in a specific entangled superposition state. Through numerical simulations, we observe that the presence of noise and nonlinear pumping gives rise to nontrivial features in the entanglement evolution, including the emergence of entanglement sudden death (ESD) and subsequent revivals in scenarios where such phenomena are absent in the idealized model. Markovian noise leads to a monotonic decay of entanglement, while disorder tends to wash out the entanglement features. Nonlinear interactions, on the other hand, accelerate the dynamical evolution. The combined and competing effects of noise, disorder, and nonlinearity are systematically analyzed, revealing rich and intricate behavior in the entanglement dynamics. These results contribute to a deeper understanding of the robustness and control of entanglement in open quantum systems with imperfections, which is essential for realistic implementations of quantum technologies.

arXiv:2306.03806•Jun 6, 2023•0 citations

Protecting the entanglement of two interacting atoms in a cavity by quantum Zeno dynamics

M. A. Fasihi, M. Khanzadeh, P. Hasanzadeh +1 more

The European Physical Journal D•May 1, 2021•2 citations
The ability to prepare and manipulate non-classical states, such as entangled qubits, is fundamental to the development of quantum information processing, communication, and computation. In this work, we investigate the dynamics of a double Jaynes-Cummings model, a well-established theoretical framework for studying light-matter interactions that captures essential features of a wide range of quantum systems, including circuit QED, optomechanics, and atomic cavity systems. We examine the model under the influence of Markovian noise and static (glassy) cavity disorder. The study aims to elucidate the impact of these imperfections on entanglement dynamics. The system is initialized with the cavity fields in vacuum and the two atoms in a specific entangled superposition state. Through numerical simulations, we observe that the presence of noise and nonlinear pumping gives rise to nontrivial features in the entanglement evolution, including the emergence of entanglement sudden death (ESD) and subsequent revivals in scenarios where such phenomena are absent in the idealized model. Markovian noise leads to a monotonic decay of entanglement, while disorder tends to wash out the entanglement features. Nonlinear interactions, on the other hand, accelerate the dynamical evolution. The combined and competing effects of noise, disorder, and nonlinearity are systematically analyzed, revealing rich and intricate behavior in the entanglement dynamics. These results contribute to a deeper understanding of the robustness and control of entanglement in open quantum systems with imperfections, which is essential for realistic implementations of quantum technologies.