Dynamics of Entropy and Nonclassicality Features of the Interaction between a ⋄-type Four-Level Atom and a Single-Mode Field in the Presence of Intensity-Dependent Coupling and Kerr Nonlinearity
作者： H.R Baghshahi , M.K Tavassoly , A Behjat
DOI: 10.1088/0253-6102/62/3/22
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摘要: The interaction between a ◊-type four-level atom and single-mode field in the presence of Kerr medium with intensity-dependent coupling involving multi-photon processes has been studied. Using generalized (nonlinear) Jaynes—Cummings model, exact analytical solution wave function for considered system under particular condition, obtained when is initially excited to topmost level coherent state. Some physical properties atom-field entangled state such as linear entropy showing entanglement degree, Mandel parameter, mean photon number normal squeezing resultant have calculated. effects medium, detuning on temporal behavior latter mentioned nonclassical investigated. It shown that by appropriately choosing evolved parameters process, each above nonclassicality features, which are special interest quantum optics well information processing, can be revealed.
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