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Chinese Journal of Quantum Electronics

Light squeezing of the system of the two-mode entangled coherent state field interacting with a V-type three-level atom

Zhuo‐Liang Cao

Published Jan 1, 2004• 0 citations
OpenAlex

Abstract

By solution of Schrodinger equation and numerical calculations, the light squeezing effects in the system of the two-mode entangled coherent state optical field interacting with a V-type three-level atom was discussed. The results indicate that the light squeezing effects depend on the degree of entanglement of the two-mode entangled coherent state optical field, the detuning, mean photon numbers and atomic initial state.

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Chinese Journal of Quantum Electronics•Jan 1, 2006•0 citations
By solution of Schrodinger equation and numerical calculations, the light squeezing effects in the system of the two-mode entangled coherent state optical field interacting with a V-type three-level atom was discussed. The results indicate that the light squeezing effects depend on the degree of entanglement of the two-mode entangled coherent state optical field, the detuning, mean photon numbers and atomic initial state.
The light squeezing effects in the system of two identical two-level atoms in the Bell state interacting with the two-mode entangled coherent states field are investigated by means of Schrdinger equation solution and numerical calculations.The results show that light squeezing effects not only depends on the mean photon numbers and atomic initial state but also the degree of entanglement of the two-mode entangled coherent state optics field,whereas the coupling between two atoms does not affect the light squeezing effects.The light squeezing effects does not appear for a special kind of Bell state |β11〉,however there can appear the light squeezing effects under some conditions for the other three Bell states.
The atomic dipole amplitude-squared squeezing effects of a Ξ-type three-level atom interacting with two-mode entangled coherent states are investigated.The effects of the degree of entanglement of the two-mode entangled coherent states,the ground state probability amplitude of the atomic initial state,the detuning,the mean photon number and the atom-field coupling constant on the atomic dipole amplitude-squared squeezing are analyzed.The results indicate that the light squeezing effects depend on the degree of entanglement of the two-mode entangled coherent optical fields,the detuning,the mean photon numbers,the atom-field coupling constant and the atomic initial state.
By means of numerical calculations,squeezing effect of the field in the system of two-mode entangled coherent states interacting with a Λ-type three-level atom is investigated.The influences of the degree of entanglement of two-mode entangled coherent state optics field and mean photon numbers of two-mode optics field on squeezing effect are discussed.The results show that squeezing effect strengthens with increasing of the the degree of entanglement of two-mode entangled coherent state optics field and weakens with increasing of mean photon numbers of two-mode entangled coherent state optics field.
By means of numerical calculations,the dipole squeezing of a Λ-type three-level atom interacting with two-mode entangled coherent states is investigated.The influences of the degree of entanglement of two-mode entangled coherent optics field and mean photon numbers of two-mode optics field on dipole squeezing of a Λ-type three-level atom are discussed.The results show that squeezing effect weakens with increase of degree of entanglement of two-mode entangled coherent optics field and with increasing of mean photon numbers of two-mode entangled coherent optics field.