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Chinese journal of atomic and molecular physics

Time-Evolution of atom's occupancy in the system of two-mode squeezing vacuum field interacting with two coupling-atoms

Haung Chun

Published Jan 1, 2000• 0 citations
OpenAlex

Abstract

We investigate the time evolution of the atoms occupancy in the system of two mode squeezing vacuum field interacting with two coupling atoms by means of quantum theory. The dependence of these properties on the character of the system itself is discussed by numerical method.

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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.