Four-level Hamiltonian model with an additional Kerr medium and multiphoton processes

Hamid Reza Hamedi, Seyyed Hossein Asadpour, Mostafa Sahrai

Luong Thi Yen Nga, Nguyen Huy Bang, Nguyen Van Phu +4 more

Harry Friedmann, A. D. Wilson‐Gordon

M. A. El-Deberky, Mona Ali

We consider a two-mode quantized field described in a coherent state interacting with a four-level atom. An effective Hamiltonian is obtained by adiabatically eliminating the intermediate two levels in a cascade and the e process. The influence of the Stark shifts kerr-like medium on the atomic inversion are examined, as well as on the field entropy, atomic purity and Mandel's Q-parameter. The results of the calculations are illustrated numerically

M. A. El-Deberky, Mona Ali

We consider a two-mode quantized field described in a coherent state interacting with a four-level atom. An effective Hamiltonian is obtained by adiabatically eliminating the intermediate two levels in a cascade process. The influence of the Stark shifts and the Kerr-like medium on the atomic inversion are examined, as well as on the field entropy, atomic purity and Mandel's Q-parameter. The results of the calculations are illustrated numerically.

Vladimír Bužek, Igor Jex