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Journal of Changsha University of Science & Technology

Influence of Kerr Medium and the Interaction between Atoms on the Atomic Dipole Squeezing in the Two-Photon T-C Model

Huang Chun-Jia

Published Jan 1, 2004• 0 citations
OpenAlex

Abstract

The time evolution of the atomic dipole squeezing in the system of two coupling atoms interacting with single-mode field in two-photon transition in Kerr medium are studied by means of quantum theory. The influences of the Kerr medium and single-mode field coupling constant and the dipole-dipole interaction between atoms are discussed.

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Journal of Atomic and Molecular Physics•Jan 1, 2007•0 citations
In this paper, the quantum properties of light in a system of two coupling atoms interacting with a single-model squeezed vacuum field at the two-photon transition in Kerr medium are studied by means of quantum theory.The influences of the Kerr medium and the dipole-dipole interaction between atoms are discussed. The results show that when the Kerr effect and the dipole-dipole interaction between atoms may be neglected, the fluctuation of U2 can be squeezed periodically. With increasing the Kerr effect and the dipole-dipole interaction between atoms, the squeezing effect of light gradually becomes weak and the squeezing time of light gradually decreases. The periodical collapse-revival phenomenon of the time evolution of the second-order coherence degree of the field appears, which is caused by the influence of the Kerr effect and the dipole-dipole interaction between atoms. No matter how large are the coupling constants, the photon bunching always appears.
The time evolution of atomic dipole squeezing in the system of single-mode field interacting with V-type three-level atom via intensity-dependent coupling in Kerr medium is studied by means of the quantum theory.The effects of the coupling constant χ and the detuning Ω on the dipole squeezing are discussed by the method of the numerical calculations.The results show that Kerr effect has decreased the atomic dipole squeezing in various degrees and proper detuning Ω is propitious to atomic dipole squeezing.
The time evolution of Light squeezing in the system of single-mode field interacting with V-type three-level atom via intensity-dependent coupling in Kerr medium is studied by means of the quantum theory.The effects of the coupling constant χ and the initial average photon numbers on the squeezing are discussed by the method of the numerical calculations.The result shows that Kerr effect has decreased the atomic dipole squeezing in various degrees the Proper initial average photon numbers be propitious to the squeezing of light.