Time Evolution of Atomic Occupancy in the Two-photon T-C Model via Intensity-dependent Coupling
Fang Jia-Yuan, Huang Chun-Jia, Xiao Fu-liang, Jiangfan Li · Journal of Hunan Light Industry College · 2005
The time evolution of atomic occupancy for the system of squeezed vacuum field interacting with two coupling atoms via intensity-dependent coupling in two-photon transition are investigated. The influences of the atomic initial state, the interaction between atoms and the initial squeezed parameter of field on the atomic occupancy are discussed. The results show that periodical collapse-revival phenomenon of the time evolution of atomic occupancy appears, which is caused by the influence of the dipole-dipole interaction between atoms. The periods of the collapse-revival shortens till the collapse-revival disappears while increasing the interaction between atoms. The amplitude of oscillations decreases in increasing the initial squeezed parameter of field.