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半导体光子学与技术：英文版

Influence on Atomic Inversion Evolution in Medium System from Compton Scattering

Yang Hao, Xiaofei, Dong-shan

Published Jan 1, 2008• 0 citations
OpenAlex

Abstract

在 Jaynes-Cummings 模型，由使用原子形成的联合系数的调整，任意的形式的中等、散布的光、原子倒置进化被得出了。它的可行性被证明了，并且任意的形式的原子倒置进化的弯曲被获得。它宣布原子和联合中等系统是在 Jaynes-Cummings 模型表示原子和光域量的操作员。这些操作符能表示任意的中等系统。在这些系统，联合系数能在更长协调的时间被改变并且确切控制了。

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在 Jaynes-Cummings 模型，由使用原子形成的联合系数的调整，任意的形式的中等、散布的光、原子倒置进化被得出了。它的可行性被证明了，并且任意的形式的原子倒置进化的弯曲被获得。它宣布原子和联合中等系统是在 Jaynes-Cummings 模型表示原子和光域量的操作员。这些操作符能表示任意的中等系统。在这些系统，联合系数能在更长协调的时间被改变并且确切控制了。
In Jaynes-Cummings model,by using the modulation of the coupling coefficient formed by the atom,medium and scattering optical,atomic inversion evolution of arbitrary forms has been worked out.Its feasibility has been proved,and the curvature of the atomic inversion evolution of the arbitrary forms is obtained.It announces that the atom and coupling medium system are to express the operators of the atom and optical field quantum in Jaynes-Cummings model.These operators can express arbitrary medium system.In these systems,the coupling coefficient can be changed and exactly controlled in the longer coherent times.
The system under consideration consists of a two-level atom coupled an optical field in k-photon Jaynes-Cummings model with a Kerr medium.The time evolution of field entropy squeezing and population inversion of the atom for three and four-photon transitions was discussed.The influence of Kerr medium on field entropy squeezing and population inversion of the atom was also analyzed.The results show that the field entropy squeezing and population inversion of the atom are sensitive to effect of Kerr medium.
In this paper, we study the multiphoton Jaynes-Cummings model (JCM) governed by the Milburn equation [G. J. Milburn, Phys. Rev. A 44, 5401 (1991); 47, 2415 (1993)], which models the decoherence of a quantum system as the quantum system evolves through intrinsic mechanisms beyond conventional quantum mechanics. We give an exact solution of this equation for the multiphoton Jaynes-Cummings Hamiltonian and apply it to investigate the influence of the intrinsic decoherence on nonclassical effects (atomic inversion, oscillations of the photon-number distribution, squeezing of the cavity field, and photon antibunching) in the JCM. It is shown that during the time evolution, the intrinsic decoherence in the atom-field interaction suppresses these nonclassical behaviors in the JCM.