Tripartite entanglement dynamics for atom in a two-mode nonlinear cavity
arXiv:0805.0423 · doi:10.1016/j.physleta.2008.11.036
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.
13 pages, 4 figures
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Cited by in corpus (5)
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- Dynamics of entanglement of a three-level atom in motion interacting with two coupled modes including parametric down conversion
- Entanglement criteria of two two-level atoms interacting with two coupled modes
- Atom-photon, two-mode entanglement and two-mode squeezing in the presence of cross-Kerr nonlinearity
- Linear atomic quantum coupler