TY - JOUR
TI - Effect of stark shift on three-level atom interacting with a correlated two-mode of non-linear coherent state
AU - Obada Abdel-Shafy F
AU - Ahmed Mohamed M. A.
AU - Khalil Eied Mahmoud
AU - Habeba Hala F
JN - Thermal Science
PY - 2022
VL - 26
IS - 101
SP - 271
EP - 284
PT - Article
AB - In this manuscript, we study a new non-linear system which represents a  Ξ-type five level atom interacting with a quantized four-mode  electromagnetic field. A non-linear Stark shift is introduced, through the  elimination of intermediate levels (two and four) using the adiabatic  elimination technique. By using the Schrodinger equation we obtain the  analytic solution this model. Some statistical aspects through the effective  Hamiltonian are presented such as the collapses-revivals phenomenon, degree  of purity, concurrence, and the squeezing phenomenon with respect to study  the effect of Stark shift parameters on these statistical aspects. For small  values of the Stark shift parameter, the collapse times increase and the  atomic inversion symmetry axis shifts upward, while the entanglement  decreases significantly. It has been noted that the system is affected by  the Stark shift parameter.