原子与二项式光场的相互作用在T-C模型中的纠缠演化

摘要

应用全量子理论,研究原子与二项式光场相互作用在Tavis-Cummings模型中的纠缠演化,讨论了原子处于不同初态相角和偶极-偶极相互作用下对纠缠演化的影响.结果表明:原子间的纠缠呈现出周期性,原子的初态相角和原子间的偶极-偶极相互作用对腔中原子间的纠缠有明显的影响；原子在一些特殊的初态时,两原子总会处于纠缠态的最大值.%The entanglement character of entangled atoms interacting with the binomial light-field in Tavis-Cumming model (T-C model) is studied by means of the quantum theory. The influences of the phase angle and the atomic dipole-dipole coupling intensity of the atoms on the properties of the entanglement between two atoms under different initial states are discussed. The results indicate that the periodicity of the entanglement between atoms is influenced. The phase angle and the atomic dipole-dipole coupling intensity has an effect on the entanglement degree between the two atoms. The two atoms will at maximum entanglement state forever in some under different initial states.