Tripartite entanglement dynamics for atom in a two-mode nonlinear cavity
Abstract
In this communication we introduce a new model which represents the interaction between an atom and two fields injected simultaneously within a cavity including the nonlinear couplers. By using the canonical transformation the model can be regarded as a generalization of several well-known models. We calculate and discuss entanglement between the tripartite system of one atom and the two cavity modes. For a short interaction time, similarities between the behavior based on our solution compared with the other simulation based on a numerical linear algebra solution of the original Hamiltonian with truncated Fock bases for each mode, is shown. For a specific value of the Kerr-like medium defined in this letter, we find that the entanglement, as measured by concurrence, may terminate abruptly in a finite time.
Cite
@article{arxiv.0805.0423,
title = {Tripartite entanglement dynamics for atom in a two-mode nonlinear cavity},
author = {Mahmoud Abdel-Aty and M. Sebawe Abdalla and Barry C. Sanders},
journal= {arXiv preprint arXiv:0805.0423},
year = {2009}
}
Comments
13 pages, 4 figures