2010/04/30 by N. Metwally, M. Sebawe Abdalla, Mahmoud Abdel‐Aty +1 · 7 citations
Computer Science · Mathematics · Physics and Astronomy · #Classical mechanics #Computer science #Density matrix #Fidelity #Hamiltonian (control theory) #High fidelity #Mathematical optimization #Mathematics #Photon #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Quantum optics and atomic interactions #Qubit #Robustness (evolution) #quant-ph
paper · pdf · doi:10.1007/s10773-010-0389-z
published in International Journal of Theoretical Physics 49(9), 2051-2064 (Springer Science+Business Media)
arxiv created 2010/04/30 · openalex publication_date 2010/06/02 · arxiv updated 2015/05/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We explore the dynamics of two atoms interacting with a cavity field via deformed operators. Properties of the asymptotic regularization of entanglement measures proving, for example, purity cost, regularized fidelity and accuracy of information transfer are analyzed. We show that the robustness of a bipartite system having a finite number of quantum states vanishes at finite photon numbers, for arbitrary interactions between its constituents and with cavity field. Finally it is shown that the stability of the purity and the fidelity is improved in the absence of the deformation parameters.