Abstract:
In this article a treatment of a three-level atom interacting with two modes of light in a cavity with arbitrary forms of nonlinearities of both the fields and the intensity-dependent atom-field coupling is presented. A factorization of the initial density operator is assumed, with the privileged field modes being in a pair-coherent state. We derive and illustrate an exact expression for the time evolution of the density operator, by means of which we identify and numerically demonstrate the region of parameters where significantly large entanglement can be obtained. We show that entanglement can be significantly influenced by different kinds of nonlinearities. The nonlinear medium yields the superstructure of atomic Rabi oscillation. We propose a generation of Bell-type states having a simple initial state preparation of the present system.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received 29 July 2002 / Received in final form 18 October 2002 Published online 21 January 2003
RID="a"
ID="a"e-mail: abdelaty@uni-flensburg.dePresent address: Institut für Mathematik, Universität Flensburg, Germany.
Rights and permissions
About this article
Cite this article
Abdel-Aty, M., Obada, AS. Engineering entanglement of a general three-level system interacting with a correlated two-mode nonlinear coherent state. Eur. Phys. J. D 23, 155–165 (2003). https://doi.org/10.1140/epjd/e2003-00011-3
Issue Date:
DOI: https://doi.org/10.1140/epjd/e2003-00011-3