在大失谐的双色场中捕陷原子的量子混沌特性

QUANTUM CHAOS IN THE MOTION OF A TRAPPED ATOM FOR HIGH DETUNING

分析了在大失谐条件下捕陷二能级原子与驻波光场和行波光场共同作用时的动力学行为 .在经典极限下该系统出现混沌特征 ,与经典可积情形相对应 ,其振动态的量子平均能量呈现规则的崩塌 回复特征 ,在不可积的情形下这种相干性特征将消失 .

The quantum dynamics of the trapped atoms, which acts with a standing light field and traveling light field, is investigated. This quantum system shows chaotic behavior in the classical limit. Evolution of the quantum mean energy of the atom with time displays the characteristic of collapse-revival when corresponding classical system is integrable. The coherence characteristic of regular collapse-revival will disappear when corresponding classical system is non-integrable.