Nonclassical effects for a qubit coupled to a coherent two-mode cavity with intrinsic decoherence

Nonclassical effects for a qubit coupled to a coherent two-mode cavity with intrinsic decoherence

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In this paper, we use silver lining herbs kidney support the su(1,1)-algebraic treatment to explore the effects of the intrinsic decoherence in a two-mode cavity containing a two-level atom.Each field is resonant with the qubit through a four-photon process.The role of the intrinsic decoherence and the superposition of the initial generalized Barut-Girardello coherent state on the quantum effects is investigated via different quantifiers as: atomic inversion, linear entropy and negativity.

It is found u11-200ps that the non-linearity of the four-photon process leads to generate non-classical effects with a high oscillatory behavior.The superposition of the Barut-Girardello coherent state controls the dynamics of the purity loss and the entanglement.It is found that the nonclassical effects are very sensitive to the nonlinear interactions between the qubit and the two-mode cavity.