原子与耦合腔相互作用的动力学特性

Dynamics for the system of atoms interacting with coupled cavities

研究了两个二能级原子分别与耦合腔A和B发生共振相互作用时的情况,给出了总激发数为1时系统态矢的演化。通过对原子1和原子2占有激发子的几率,以及腔A和腔B具有1个光子的几率计算,研究了系统的动力学行为。讨论了腔场间的耦合强度变化对系统动力学行为的影响。研究结果表明:随着腔场间耦合的增强,系统初始的激发子分布在原子1和原子2中的几率增大,腔A和腔B具有1个光子的几率减小,两原子间的纠缠增强。

The one-excitation dynamics for the system comprising two two-level atoms resonantly interacting with two coupled cavities is studied.The evolution of the state vector of the system is given.The excitation evolutions of atom 1,atom 2,cavity A and cavity B are investigated.The influences of coupling constant between cavities on the dynamics are discussed.The results show that the excitations of atoms increase,and the excitations of cavity A and cavity B decrease with increasing of the coupling constant between cavities.